I suggest that the members who are a source of merit, will create few topics in different sections (Each of them offers one topic every month) and they will ask in which on subjects in different fields (like, Bitcoin, Gambling, Trading, Mining...). So the other members (especially who needs the merit point) will respond by presenting their ideas and it is necessary to be with a high quality post, then the members (who are a source of merit) give merit points to those who deserve it.
The truth is that the topics in those sections are usually spammed to death. Most of the replies in the topics are either said a million times or are just copy and pasted. The merit system is discouraging such behaviours and anyone doing that would just encourage more spam.
You don't post intentionally to get merit. You'll get it, if you deserve it, wherever you post.