It would be great if it were as you say. But you see at maximum two users; I think no more. And all the rest are their alternative accounts that moderators cannot ban because there is no direct evidence. However, their writing style is very well-defined and has many similarities. This is an example of exactly this kind of behavior when dozens of alternative accounts harm the forum...
Honestly, what's their goal? What could they be possibly gaining with unnecessary spam posts? I asked this question myself a dozen of times but never really got an answer. I would have understood if they/he were getting paid for posting, but he doesn't, nor is he promoting anything, nor part of any signature campaign, nor any altcoin bounty, nothing at all. Just wasting time. What are they trying to achieve here, 11 merits and 445 posts, dud! What an achievement, lol 
. Some people would do anything for money, if they tell you to eat shit, he will eat shit. But for these ignored users, I can't think of any reasons at all.Message to those alts: "Man, get a life, don't you have better things to do?".
Quote
and maybe it would make sense for them to allow one account per IP.
I don't think theymos would do that. Well, not until the forum floods with massive spams and everything goes out of hands.