I'd say think of it as supporting one of the better, more informative YouTube film photography channels. Channels like Ribsy's, SFLaB, Naked Photographer, Steve O'Nions,Old Camera Guy, and Matt Marrash cannot be cheap to run; not only is there the cost of film and chemistry, there's the video equipment (and not just cameras; my desktop computer, perfectly adequate for editing scans close to 100 megapixels, just goes to its knees if I try to edit video). They're helping keep film alive by keeping it in the public consciousness via YouTube -- and I'd guess Patreon doesn't bring in much money (at least my partner's Patreon doesn't, though it's not photography related).
Buying stuff from these channels -- Steve and Roger's prints, Ribsy's film, Greg's darkroom towels, aprons, and t-shirts (and prints) -- helps make these channels pay enough to keep the "love" in "labor of love" production.