Just thought of this, tell me what you guys think about it. We already have a consideration list for promotions and demotions. How about there being one for warns as well. Like, let's say someone's been consistently breaking rules or just doing stuff subject to warn (as in, excessive strong language, making shitload of one-word posts or one-liners). Basically, just being an annoyance to the forum in general. And there's a chance they may not be realizing it. So, instead of warning them straight away or overlooking their behavior with the hope they'll eventually improve, the staff can send them a PM, informing them that they've been added to a "Warning list" of sorts and if they don't maintain good behavior for a respectable amount of time, they'll be subject to a set number of warning points or even suspension if the behavior/attitude is extremely bad. That way, you give them a chance to improve themselves and it can count as a stricter approach of sorts where you make them aware that you're closely monitoring their progress and this forum isn't a free area to post whatever bullshit they please.
I really like this idea, I remember when I first joined and received some warning point that I never really noticed that I had them unless told and didn't really understand the impact of what I wasdoing. Not sure if the system has changed since then but a PM would definitely show that we are watching behavior and I hope would discourage users from continuing to break rules.