Actually is that off topic? Since the thread starter brought it up, and since this is a thread about what kind of person you would want to date, I think it is somewhat relative in this context.
Also bisexuality isn't 'touchy' for me, although it seems to be with a few people who have had a 'bad experience' in the past. I don't even have a problem with anyone saying they don't want to date a bi guy/girl. It is totally their choice.
What I do take acception to though is discrimination of any sort, and passing off negative, blanket stereotypes to others as 'advice'. I don't tolerate racism, sexism, ageism, etc etc. I would think that most gay people would learn it isn't nice to treat others so poorly, but it seems bi is even less acceptable than gay these days. Also if you want to share a bad experience and say be careful, by all means do that!! Just don't say in general bi guys do such and such. Its just not true. Personally I took the statement "i don't like bi though !!!" to be a directed statement of hate....and I would have commented just as harshly if someone had said 'I don't like black people' (just an example, not my feelings at all).
Anyway if you still feel this topic doesn't belong in this thread feel free to remove this post, it wouldn't be a first for me...