Gore is spoopy. Is October so... go for it! :3

Gore would be good. :)

Yes

I would only ask that you give it a verbal thumbnail telling us it's gore because, to be honest, I hate to see gore and violence in furry art. One time someone posted something that even by the mere thumbnail left me feeling disturbed all day, it was so horrific. If they'd used a text thumbnail to notify viewers first, I could have easily avoided seeing any of it.

Do custom thumbnails work?
Cuz I'll totally use them if they work.

Yes, they can be attached on the same page where you upload the main image file.

Yeah, I know.
But, custom thumbnails don't seem to show up. Just tried to post an image with a different thumbnail. Didn't work. :/

Bring it on!