Cosmetics to gain: PFP borders, Profile backgrounds, Cover images, Coloured @number (monthly or semi-annually resets, like a battlepass in a game). All NFTs.
Traditional NFT Art to gain at higher levels, good ones. First come first serve. First to reach the level gets one at random, until it runs out. If it doesn't run out by end of "battlepass", dated mint to sell the rest.
Leaderboards. Better leaderboards that track all this.
Maybe make it so it can't be spammed-to-win. Cooldowns on XP gain, so that it's possible to gain all rewards before "battlepass" ends, with moderate usage, but doesn't incentivize mindless spam.
@1 @3 @4