Just look at the current state of Skyrim modding.
Aside from some still holding to LE. There are the 1.5.97 SE users and the 1.6+ AE users. And there have been at least one or two more updates in the 1.6 line that also caused more issues and require their own dedicated builds of various mods.
Its fucked
Nobody has to pay for anything Lemmy or ActivityPub related because its FOSS.
That means Free Open Source Software.
As in, you can get and use the source code yourself without paying a single cent.