Well when I got permanently banned for calling someone regarded, I waited over 8 months before I created a new account with a software that supposedly emulates a different PC hardware and Linux OS and I used that software for 2 weeks to get some random cookies and stuff to make sure reddit doesn't think I'm a bot, I even restarted my modem to get a completely different IP address (and I didn't use any VPN as it detects that if you do and you are automatically flagged).

Then I created a new account and barely used it to do anything, only liked and commented on a few generic posts to ensure it doesn't track my subreddit to my old account and still I got banned on the 3rd day for ban evasion.

I don't know what the fuck they use to detect that, but holy shit, that is incredibly good, atleast against a basic ban evader like me.