Well I don't think so, because at their own they are posting to earn merits and earning this merits
Posting to earn merit, if so, they don't deserve merit with most of their posts.
shows how creative they are if they succeeded earning this merits
Be creative with posting does not mean their posts have quality.
But it must not be giving to everyone who is just 30 to 20 merits away from their next rank rather it would be judged base on how constructive and creative you seems to be and nevertheless, theymos can implements system to show how active and creative a user is before they could be credited this merits to avoid abuse.
The merit system, merit sources and non-merit-sourced users can do it well with current merit system that was kicked off in 2018.
Theymos does not need to change the merit system to satisfy creative posters but their post quality is in doubt.
Though your suggestion may sound good, but to me I think automating merit to be sent to forum members when they attain to a certain rank is not the best solution to our recent merit scarcity
Merit is not scarce, good posts are.