Is this a dark pattern? I'm ok with shadow bans if they're reserved for those egregiously abusive users who ruin the community for everyone else. Let them shout into the void.
I think it is dark to show you your comment as if it's not removed, and many say shadow removals are overused (see "what people say" [1]). Only the mods know it works this way.
[1] https://www.reveddit.com/about/