Personally I'm with Marque. Although I've been lucky enough to not be trolled here (although I have been on other sites) I'd just leave the comments, reply to them (you can do that and not effect your rating) with something witty like 'am I under a bridge cause there is a lot of troll round here' and let other people who visit your gallery see them for what they are. If the ppl here are like the other sites Trolls will be both punished and shuned. Here I've been the victim of I guess you can say the anti-troll? I'm not sure what you call them, people who give so 'gushing' praised you know that they are just being jerks. I just ignore them too.