I'm trying to rejoin a forum that I was banned from a few years back, when I was younger, immature, and stupid. I figured it wouldn't be a problem as long as I change my screen name and abide by all the rules, but as soon as I post I always get banned. It hasn't even been anything offensive... it's just normal stuff. They must have a way to find out it's me. How is that possible when IP addresses are always changing?