Ironically, the thing that made me realize just how much free labor I was providing for Reddit as a moderator wasn’t when a fellow mod quit the site because of how much free labor they were providing.
It was when Reddit offered a bunch of mods an absolutely pathetic “moderator appreciation gift” a year or two back.
Before that, I was still perfectly happy telling myself it wasn’t labor, but just a way of giving back to the hobbyist communities I was part of.