

No, toilets have charges because shitting and pissing are necessary human bodily functions but doing it in public is illegal, so they have a monopoly on where you can piss or shit and can make you jump through basically whatever hoops they want in order to access their facilities. Nobody needs to go to Venice, Edinburgh, or Barcelona, but millions do every year because of the history and culture they can only access there.
Donations are the Devs income stream, so they are in fact paying for .ml out of their own pocket. “funding development” doesn’t actually mean anything beyond “paying the developer’s wages” for Lemmy, so once you’ve paid them you don’t get a choice in how they spend their income.