Ok, great. I didn’t realize that.
It make sense to do everything directly wallets to wallets in this case, and not manage this internally.
The thing with likes if that you would automatically tip when giving a like, then. It could be a nice approach, but you cannot like anymore without costing you money then (and having a funded wallet associated with your account). But why not. It’s up to you to decide what you want. Also, as said, I’m not sure if you want users to be able to tip other users, or only the forum to initiate tips. Up to you to decide too.
Oh, you’re very welcome. It allows me to improve my own comprehension and knowledge of the matter, so it’s good for me too 
Sure, I’m going to do this and I’ll send you a PM with my address. Thanks.
EDIT: Ok, I’m also now realizing you use your own crypto, so tipping with it don’t “cost” you anything. It’s new units you would create, right ? (I was in the idea of distributing Bitcoins initially) And for users to be able to tip with it, begs the question of how they acquire the units first (by being tipped themselves, or there would be a need for them to “buy” some or be given some). Thus maybe you really was on the first idea of the “forum tips its users” only.