I don't really mind personally but it makes it really embarrassing to watch with/recommend to other people.
This right here. As long as it's not excessive to the point of disrupting things I care about in the show, it's fine, but hell if it doesn't make it hard to introduce stuff to people who aren't in that mindset.
Being a younger sibling (mid-late in a large family), I hated fanservice whenever it appeared at all; mainly because I usually got all kinds of crap from my siblings about it (especially my brothers), and always getting hit with censorship calls from my parents was no help either, making it outright embarrassing to watch it, or even shrug it off whenever a scene, even with a relatively attractive person on screen, sans sufficient fanservice, even appears (I pretty much predict this crap with minimal cues, just to prevent witnessing it, and dealing with the flak). I still get an awkward reaction when it comes on (I can't help it, I always avert my head or eyes regardless; I'm an adult, and I still do this), and nobody's around; I even hold back on any recommendation of damn near anything (even tame stuff), to nearly puritanical levels, if it has any amount of fanservice on it, because, screw any story it might have "We know why you like watching this/are such a fan." is pretty much what I, 95% of the time, expect to hear from anyone I know. It makes me feel like I'm permanently labeled a pervert (though I was anything but that), even when I've been told something's worth watching by the very same people (*cough*siblings*cough*) that gave me that crap; or the fact that I'm an adult even, and shouldn't still feel like this, this late into my life. Nowadays, I have to build up an immunity to reacting to anything even remotely sexy, if at least, to prevent reacting in such a manner to it in front of others.
Gee, I don't see where this plan might go wrong in my future and eventual dating life (what little existed). I feel like it contributed a bit for similar reasons; I find someone whose cute (and once in a blue moon, would find me worth being around), I might get all kinds of crap like when an attractive person's on screen. Screw that. Either keep them a secret for eternity, or date someone average or less in the looks department to avoid the flak-storm. Or so my old thinking would have led, had I not taken care of it. On the plus side, if anyone attempts to use their charms on me, I can troll the hell out of them by using my immunity, and mess with their heads, or knock their self-esteem down a peg (mainly if they solely depend on their looks for absolutely everything; or are trying to make me a "welcome mat"-class nice guy for their own selfish reasons.
Have fun with that.).
(Un)fortunately, TV's over-saturated with this crap; it's second-nature to me to outright ignore it (Victoria's Secret and Superbowl commercials don't even make me react a single bit, regardless whose around, or what's on display (only real exception being censorship from the next generation in a way they wouldn't even notice it (blocking their line of sight, mostly); rather than be shamed of it.). This kind of stuff can become a drinking game.), or see past the screen, or watch a show without watching it around others (or blindly watching TV or a movie). I've heard of being sheltered, but my case was outright absurd. I hope the level of censorship my siblings use on their own kids isn't nearly as harsh as what I've been hit with.
Personally, getting over most of it these days (and having my word with at least one of them that caused such trauma), I'm at a point where I no longer give a crap about it. Then again, spending most my time alone, where I'm away from getting shamed about (pretty much) everyday crap by this point, I can actually finally enjoy these things for what they were meant to be. Story first, like I always watched for in the first damn place; aesthetics/fanservice is just extra I can care less about. My form of fanservice is art direction and explosions.
Hell, whenever I mention anything that has any amount fanservice (cute characters are excluded, unlike in my cases) in it as a recommendation, I always preface it with "When you get past the fanservice... [insert personal review here]. [My age recommendation where their kids are concerned; depending on material and amount].". How I see it, it's an inevitability to see this kind of crap; when it's acceptable to give in and accept the fact that they have now taken interest in such things, is where to draw the line. My line was drawn way too late in my life, and look at the fun that was had there (and on average, society draws the line far too soon, and look at the consequences of that). Whether to have fun messing with me or to shelter me (I was a good kid; but this was ridiculous), it did damage to my psyche for longer than I think they ever expected it to. At least, one of my sisters were ashamed of it, and apologized about the long-term damage that kind of bullcrap does to a person like me. It's a similar story with my vulgarity. I still nearly-stutter because I censor potential vulgarity when I talk; but on the plus side, I am more creative in my insults and sarcasm, and my wit's also sharp enough to really verbally abuse someone deep. F-bombs are for the weak.
TL;DR- I hated fanservice (mainly because of my siblings making fun of me about it); but nowadays, I got better, and it's more like the Matrix to me. I don't even see the fanservice anymore. I just see it for what it is. Blonde, brunette, redhead... Hot or not, I can give less a crap about it. Hell, fanservice makes me roll my eyes in annoyance, because it's pointless. If it keeps an audience, okay, I guess. But if there's a good story, I'd like to shamelessly share it, and not have a repeat of my childhood, and the crap that came with it, because of it.
EDIT:
Ironically, I was just like those kinds of male lead anime characters that always tells the girl to cover up, and avoids looking at them at all costs (though it's out of courtesy; naturally, the wrong message always would be received from it). Predictably, violence is to be expected, whether actually seen or not. Nowadays, however, I don't give a flying fuck about it, and might as well be regarded as blind to it. As long as I don't react, whose to say I noticed, or even care anymore? You see one, you've seen them all. I accept the consequences to the receiving party's ego it may cause.