Enhance it by banning anyone selling merits, and fining anyone abusing the merit system -50 merits, and that includes those buying merit.
Jet Cash is right.
I do believe account farmers on my local board are now "dying". They are having a hard time to increase their alts rank because spamming will not increase their rank anymore. But of course, it won't affect them too much if their alts were already high-ranked.
Spamming is highly reduced, but still not entirely gone. That happens because those spammers rank is already high (full member up), so they don't think about merit. They just wanted to post to get their sign rewards. Even a legendary (not all of them, of course) from my local board is still posting a low-quality post until now.
So, let's report them, to make sure they got banned and got tagged if they are abusing the merit system.
Bounty managers should take part in this too. Don't accept someone who got tagged and abused the merit system in their sig campaign.