I'm kinda of attached to dogs personally in one way or another, presumable 'cause I once had a dog which appeared to be smart and adorable.
for me, I couldn't bear the thought of eating dogs. but just because my aversion to dog eating doesn't necessary mean i'm in a position to justifiably criticize other people. I was annoyed once during a treat by my college friend, someone ordered soup with dog meat w/o prior notification of me. It would be safe for someone to say in advance that there would be some meat which quite a few people may refuse to eat.
my point here is that one should just respect other people's cultural traditions or eating habbits. I once encountered a man eating porks(previously bought) in a muslim restaurant which resulted in bitter quarrel. that man just appeared to be such a godamn asshole.
another things should be noted is that: since where there is a demand, there is a market. some bad guys are just hunting stray dogs or even pet dogs for restaurant use(with poisons or possible anaesthetic shot by guns).
when it comes to the abovementioned two scenarios, that's where i draw the line.
Actually nobody (vegans in particular) is in a position to denounce those dog-eating (or sth like that) people on possible grounds like: dogs/cats appear to be more intelligent or loyal to human beings.