Not at all, although I don't approve of the people who have to announce it whenever they want attention. Mainly a couple of 'trendy bisexuals' I know.
A gay guy at my school used to come in wearing full make-up and whenever he passed me in the corridor I heard him saying things like, "I'm gay you know! I am gay! I have a boyfriend you know!" From what I heard, he also tried to get out of detention by accusing the teacher of being homophobic. I don't like his personality, whether he was straight or gay.
But yeah, I don't have a problem with any of it. I'm not too fond of the people who are like, "Gay guys/lesbian girls kissing are disgusting, but lesbian girls/gay guys making out are hawwwt!"