I read through the thread once more and the two general trends that emerge:
* We're attached to the original seven.
* We regard death as special, with some ritual of tomb arrangement or burial in effect at many fortresses.
In fact, the DF community doesn't look as twisted as it first meets the eye: we honor hard work and sacrifice. 
and hate Elves, don't forget we hate elves!
Oh gods no, I love the elves. They give me all kinds of neat stuff and this way, I never have to worry about making sure I have enough cloth to clad my dwarves.
As for sentimental habits:
- Access to clean water
- NEVER seize ANY goods. Traders come here to my fort expecting goods and by Armok, they will leave with a smile on their face and a bounce in their steps!
- Tombs for everyone. I will not have my dwarves rotting away in some designated graveyard.
- Attempts at keeping my nobles happy. I know they're annoying, but they're dwarves, too. Unless I'm building something massive, I go out of the way to avoid needless dwarven death.
- Mandates gets fulfilled. Need I say more?
- I try to keep my dwarves clothed. The idea that they're all running around covered in puke and blood on bare rock...yeah, no. If silk is available, then they will be clad in silken finery. If not, rope reed or pig tail will have to do.
That would be it, really. Also, I've begun to try and install sanitation in each and every room. That is, one tile of open space, leading down to a water source for each room.