They're unlikely to kill us on sight; if we don't stick to our current crop, they're our best bet.
They're only *less* likely to kill us on sight *based solely* on their societal structure. We don't know any other facets of their culture, and there's a lot of other things that could be in their culture that would make them want to eat our brains.
Also note that they just BARELY made it into the *some* hatred catagory, right on the threshold of *some* and *a lot*.
Still makes them a better bet than humans or elves.
Perhaps, but I'd imagine that scouting =/= thieving...
No, but staying hidden is pretty close to staying hidden, and as for collecting and returning valuable info, I already covered that they're a bronze-age society, and their priests are well-educated. These are good indicators for their 'artisan' intellect, (their artisans being thieves), and I'd bet they'd make top-notch scouts.
Remember, though, there's differences between sneaking-in-thieving (where you can find places almost no one is and use distractions) and sneaking-in-scouting (where you have to be on guard 24/7 against every hunter, woodcutter, bear, etc).
Thieves are not scouts and scouts are not thieves. They are probably better scouts than they would be if they weren't so good at thieving, but they're not
great scouts.
Better a friend with dwarves than nothing to them.
Depends on the dwarves, and establishing a friendship might even prove counter-productive to becoming a god. Familiarity/knowledge would be the enemy to our deception.
The reason we'd become a god is so that we'd have power over dwarves. A powerful friend would also have power.
Besides, we are mutant dragons; we will probably live long enough to outlast several dwarven generations. Now, a friend; a few generations out, a leader; a few more, a god.
But...organizing... 
If multiple points are spread through multiple parts of the post, they (quotes) can really help keep things cohesive...
Agreed. They also let people remind others of what's been said and themselves of what they just said.