I'm also in favor of this. And for those who think it's too extreme, might I also suggest an alternative where repeat offenders can have a limited number of posts per day that continues to go down as they further prove that they're incompetent. If you only have 10 posts a day, any decent minded person will use those posts to their fullest and provide some intelligent posts. However, an idiot will make it obvious that they should never be heard from again by using all 10 posts to troll. Then they can get muted again and further limited when they get off mute till they finally work their way to a daily allotted post count of 0.