Tip jar
A jar. With nothing in it. Suspiciously close to you.
This buys you nothing. No XP, no runs, no levels, no rank, no advantage of any kind. We have been extremely clear that money cannot buy those and we are not going to start here.
What it does buy is a database that stays up, 14,417 problems that stay checked, and one green name colour so other people know you did it. That is the whole offer.
Minimum $0.50, because Stripe will not process less. Not our rule.
Not into it? Genuinely fine. Go and beat somebody on the leaderboard instead, that is free and it annoys them more.