Like - I’m not writing an entire epic FF7 fanfic as soon as I get the chance soon. I’m just not attaching it to my monetised platform and it’ll live on AO3, where it belongs
The biggest issue I can see is that the CREATOR on Tapas is monetised. They’d have to turn off tipping and ad revenue for all creators with fanworks or end up in legal hotwater and that seems to be a mess. There are PLENTY of fanworks sites, I just think Tapas doesn’t have to be one of those sites with its focus being what it is.
Edit to add: Genre splitting for fanfic doesn’t work - especially as you can assign 3 genres. If you want to see what this ends up looking like in practise - look at Wattpad. Fanfiction taking top spots in all genres.