Maybe the amount of threads you create could be limited to say 5 or 10 per day? I don't see anyone needing to create more threads than that in a day.
Either that, or raise the level requirement to a higher level. You don't see many lower levels on the forums anyway, so why not raise it? I believe the requirement currently is 4, correct? You can get to level 4 by winning one, literally just one, 1v1 game.
Fizzer says that custom scenario isn't unlocked until level 47 because he doesn't want to see it abused. Well, it would save him a lot of time and energy if he used the same principle for the forums. Level 4 is way too low in my opinion. I would say somewhere around level 30. There would still be trolls, but at least people wouldn't be creating alts and flooding the forums.
Also, next time, try not to make a post about it. All it does is gives them attention. It's like trying to put a fire out with gasoline.
Edit: Seriously, Fizzer, something needs to be done. One troll is fine. But when they keep doing this over and over and over, it begins to ruin the site.

Maybe give each player the option to set a level requirement for messaging them. For example, a player would have to be level 30 to send you mail if you chose to make the settings that way. Or, if you didn't care about getting spammed, you could just leave it at level one. Regardless, something needs to be done--both about the forums, and private messaging. Both are fixable.
Edited 1/7/2017 08:35:58