Look, I'm an Aussie, and down here we don't talk bull crap. If you turned up for a dive with a pink BCD like that, I would automatically assume you were a raging homosexual (not that there is anything wrong with that, its just what I would assume). If you don't mind taking the time convincing people that your straight, then go for it. Just remember that if you're looking for a girlfriend, and theres this chick who is absolutely bangin' in your dive club - she is going to think you're gay.
Just my honest opinion. Tis what it is.
Safe Diving,
Bryce.