So what would you prefer?
Max lvl 30 ?
Cosmetic items instead of powerfull ones?
Did i miss something?
Max level being whatever that the community is comfortable with. One that can be achieved by an average C-RPG player.
Cosmetics such as titles, banners, ect awarded to players who spent lots of time trying to obtain it.
For now, just add an actual level limit that an average C-RPG player is able to obtain.
Remove the levels of the players that surpass the level limit, give them a unique permanent banner, some sort of cosmetic feature, maybe a permanent title in compensation for their dedication. Or many even give them lots of heirloom points depending on how much exp they have gathered, almost like a force retirement.
If they are a good sport, they would understand why this is done, and if they are skilled / good after playing such a long time, it would not matter much to them, and the unique cosmetic feature should be enough to satisfy them.