>>27711
> I consistently get an upload error (I'm always on a VPN) with the message: "Invalid uploader."

Catbox is inconsistently fussy about taking connections from VPNs. Not too surprising, except for the inconsistency of it.

> But yeah, there's a high risk of getting banned from Catbox

They can't completely ban you, of course, if you don't have a repeated recognizable identity.