Just curious, since I saw in the "Beware of New Xanaxking" post that the op mentioned "Also he made his reddit account with a tor browser, only newbies know not to do this. " I would ask this question in the post itself, but since I saw nothing about this in the FAQ, if it really is dangerous to start a reddit via Tor I think it should be posted somewhere where newbies will actually see it.
Found a whole sub for shadowbans.
/r/shadowban
From a stickied post on the sub. Nothing about Tor.
An unofficial guide on how to avoid being shadowbanned
Lots of people come here in mystification, wondering if they're shadowbanned, and wondering why.
It's not exactly spelled out what will cause a shadowban, and the rules do seem to change from time to time, but if you follow these rules you'll be unlikely to be shadowbanned. Thanks to the posters here who have suggested more ways to be banned.
Also, it can't hurt to read the reddiquette: if everyone followed the reddiquette, the site would be more pleasant, and all-around better.
(EDIT) Also, there are some things for which there is weak evidence of triggering a shadowban:
tl;dr Don't spam, shill, doxx, brigade, stalk, game or pedirast.