>>14587 The vast majority of people using Tor don't even visit onion sites in the first place. Most people use it either to get around censorship of the clearnet or for muh privacy. All of the FUD you see about redrooms or hitmen is sensationalist garbage made up by the mainstream media.
I've seen the spam claim a lot but never really seen any proof of it. I know of plenty of sites (including this one) that allow posting through Tor and aren't spammed to hell. Why does it have to be Tor, anyway? What's to stop people from using a VPN to spam?