There's an easy way to address the gimmick situation if you are accused - get the poster and the accused gimmick account to make a post at the exact same time, maybe on 2 different threads or even 2 different boards. So if NZMM thinks Danny has a gimmick, all Danny needs to do is make a post in one thread and have the supposed gimmick account also post at the same time. You can't post from the same IP address within 32 seconds of your last post, so if both accounts manage to post at the same time, then there goes the gimmick accusation out of the window.
No need to bother with IP addresses this way.