Reflection
Some just to look at porn, some to comment on picture and videos, some to talk to other people because they're either horny, socially minded, or in some cases, just lonely.
Whatever peoples reasons are, just do the world a favour, and don't be a dick to others if its not the same thing as you!
I can not believe that that has to be said, but it does!
Sorry if you were expecting something a bit more filthy....!
Tom