I'm not usually one to comment on these things negatively because so far Tapastic has been a great hosting site for me. But I'm sadded by the discontinuation of the Support System and confused by the expansion into prose.
I was hoping to be able to set up a SP after I graduate college, so that I could justify working one less day in the week (hypothetically) to make one more comic page a week, and update three times a week instead of two. I keep hearing about Patron getting hacked and not having all of the resources the SP has, and I'm worried I wouldn't get the same traffic there as I could here.
Also, as a prose writer, I'm not sure novels will work. Strangely, I was just looking at a tumblr post I made about this topic - how people are more likely and readily to engage in art and less likely to engage with writing. I've been posting writing on my blog for years, but I barely get anyone reading it, and it's not because I'm a poor writer. Something about writing just isn't as engaging when it's online. It's why I prefer self pub e-books to online serials; reading a packaged book on my Kindle is fun and easy, but scrolling through a story on the web? Not so much.
What's great about comics is that people can read them quickly, can get drawn in with the art, and they're much more accessible and shareable online than prose. Reading a page of a comic is a snap, and might take me 40 seconds; reading a few pages of prose, which might be the narrative equivalent of a serial comic page, will take me longer and is less engaging.
Well, that's just my two cents being an artist, writer and comic creator.