The quality of posts doesn't seem to matter much anyway. Eventually most people will have run out of merit to give and so the amount of merit you get for putting hours into a post will earn you nothing. Basically almost all the merit has already been given out. Now the only way to earn merit is to suck up to the merit sources and the few legendaries that actually have enough merit to give out still.
I do think spam is slowly going down though, but I have to wonder if that is more of a result of the altcoins crashing through the floor and most ICO coins becoming almost worthless as soon as they hit the exchanges. It is a hard world for bounty hunters right now.