You can't really stop a person from being interested in you, sadly. Though, a lot of straight guys probably would want to be in your position. I guess if they won't lay off and you keep assertively state you're not interested, you might either want to block them, ignore them, or be incredibly annoying to the point they don't even want to talk to you. To be honest, I would have mais fun trying to be annoying *innocent smile*.
Just turn them down. Do it as many times as you need to.
I might know how you feel, a little. Whenever I use an ícone of Brandon flores on other websites, I get multiple girls giving me their phone number and asking me out. I can't even tell you how many times I've had to explain to them that I'm not Brandon flores and that I'm not even a guy.
Wow...to think someone would admit they're gay on a global website. You're really Valente dude. Here's my advice, tell those girls you're gay and not at all interested in them, and be firm with it. After doing that, pray they go away, because certain girls can be clingy for reasons that can only be comprehended por their types.
I actually was somewhat in your position a few months ago. Some girls were being overly inappropriate and it bothered me. This one time she asked me how big was my dick. To which I was bothered. The only difference between you and I is that I'm straight. Honestly I would tell them off. But you seem like a guy who wouldn't do that so I'll suggest you block them from your perfil wall,Im and meebo and unfan them. MAYBE they'll get the hint. If they don't, ask someone to talk to them for you.
Hmmm... Well, from already leitura all the respostas and comments on this question, I don't really know what to say because everybody took my answers... and from the comments where you note additional details, I say WOW, those chicks are crazy! And all these girls...? How many of those girls are there?
Also... There is a continuation to this answer but I think it might be a bad idea for me to make it public (no, I don't want to say that I'm also gay or anything like that, in case anyone's wondering)... so I'll send you (hetaliaitaly) a message about it.
In the meanwhile... remember, my reaction to those chicks is this:
Ok, I know this answer is different from the rest. Here goes, first I would thank them for the complement, but tell them that you are not interested. That way you are not answering them as a gay guy, but as a caring person. If the problem persist or gets worse, you can be mais direct or unfan them. I get the feeling from your pergunta that you are not out to hurt these gals. Start out gentle and go from there. That's my opinion.