Why not? For example LoyceV earned more than 10K merits but he still holds the legendary rank as everyone who has 1K merits but this is a big difference in the numbers and how much they contributed to the forum.
Ofcourse we can get it from their merit counts but if there is another rank with 2500 merits or 5000 merits criteria which will give the recognition for their contribution and also differentiate from 1K members, anyway I don't think theymos is interested in adding ranks but I just expressed what I would like to see.
From my point of view, this idea doesn't seem bad either.
But looking at the forum currently, and seeing a lot of even influential users who haven't reached the Legendary level, I think there isn't much room for new levels to emerge.
Now, I wouldn't think it strange, in the near future this could happen. I will find it normal and the natural evolution of the forum.