Oh, the Patreon thing sounds useful! I didn't take into consideration that you could link to something on another site.
I rarely ever look at my own wall, and I don't look at any others' aside from giving them a quick thank you for subscribing, so that makes sense. Fan art does sound a lot more useful (and just nice!)
I think I have an idea. On another site, I used to make unique sketches for every individual subscriber I got, and that became unwieldly. It felt like the more I did, the more kept coming, like some sort of Sisyphean task. Even thanking individual subscribers might have to come to a stop if the influx of them ever gets too high. But for now, I'm going to stick to the quick 'thank you's.