Very interesting Data, I saw only 326 user has gained 100 or more than 100 merit. Out of them so many are old users. It look like that progression to higher ranks is not impossible but almost stilled.
Which makes sense the longer you have been a part of this forum, and crypto in general the more knowledge you will take in even through simple repetitive readings. Obviously not all old accounts are original owners, or people that cared to learn more.
I wouldn't say ranking up has stilled, it just has more meaning now then simply putting in time. It has slowed to a pace that makes sense and gives the rankings meaning, they are now actually like something you earn.