I think it would be quiet easy to just have a small link on each line of an IP address, if more posters used that IP address at all, and to see who used that IP.
I know very littly about programming, but can not imagine it will be difficult to create a MOD that does this.
There are users who have a different IP address for every post they make.
There are users I suspect of having a normal account, and a "bitch" account, where they bitch at everything and everybody. (I know 1 for sure).
But as they use a different IP address for all the "bitch posts", it is quiet hard to figure out who's who.
You are never to old to be stubern.....