Your starting to see just how insecure a lot of weight lifters(bodybuilders) are. Hell take a look at the pro ranks and see how these guys treat each other and talk shit about each other. So what if they say they could beat you on stage. So what if they say this guy is competing? You are picking a "sport" where everyone is out for themselves. Take a look at the movie pumping Iron. Arnold trash talks about everyone. Use them as a tool to be bigger and better. If they mean nothing to you then prove it to yourself by leaving it alone. I know the types of guys your talking about and if you do say anything to them, it will only get worse because they know your intimidated by them. The gym is like a bar where everyone is talking about someone. You can either be the person that is talking about someone(usually because your jealous) or the one they are talking about(usually because they are jealous). Which one do you want to be. And if your really into bodybuilding. Then go to the gym to do the work and not get caught up in the other bullshit because if you do, it will only hurt you...peace