Nice one.
Seriously though earning for reading isn't a totally bad idea. And maybe limiting the number of posts in a day, or losing merit for every post after 10 per day or something like that. Although it's in the nature of a forum/social media that on some days a lot of things might be happening, with a lot of posts as a result, in a heated discussion, not shit posts.
The actual best thing would be some way of preventing people posting on a thread unless they can prove they have actually read and understood the preceding posts, including the OP. The number of threads that consist of people posting the exact same thing over and over or completely misunderstanding the OP and posting totally irrelevant bollocks is unreal.
Perhaps there should a captcha-style check, where you get tested on contents of the thread before you are allowed to post ...