Pretty much all Tor accounts are shadowbanned from the start. It is pretty common for Tor IPs to just be banned from the start on sites given the volume of abus

Pretty much all Tor accounts are shadowbanned from the start. It is pretty common for Tor IPs to just be banned from the start on sites given the volume of abuse. Reddit also uses cookies to track together your accounts together when not using Tor. My friend got to the point where any account she tried to use was shadow locked out, i.e. as soon as you tried to log in on the poisoned browser, it locked the account and any account that followed. Clearing the cookies solved that problem. They also appear to have some kind of language profiling for certain topics and new accounts. Source: Lessons from a friend working at a company that heavily relied on spamming Reddit for customers. A heck of a lot of creative things were tried to continue that.