EDIT: @mindbleach@sh.itjust.works shared something that might help to circumvent this shit:
Contained in these parentheses is a zero-width joiner: ()
Basically, add those to whatever you feel that might be filtered out, then remove the parentheses. The content inside the parentheses is invisible, but it screws with regex rules.
Where Is the shadow part of the ban?
left side: logged in. exists.
right side: private window, not logged in. does not exist.
Interesting trick I should save for future use.
It's just like adarza said.
Left: logged in. My own activity is shown.
Center: logged out, old reddit. It claims that the user doesn't exist.
Right: logged out, new reddit. It claims that the user was suspended.
A shadow ban is where they didn't tell you that you were banned. A shadow banned user could go for years commenting and posting and never realised they were banned. It's only if they check their posts while logged out that they realise.
it means nobody can see your comments or posts, its the result of a redditor that was making multiple accounts and evading bans 10+years ago. it tricks you into thinking you "arnt banned, or comments removed" this way reddit doesnt advertise to the bots, user that they are banned.