[quote=@Chevaleresse]
The actual issue is people saying they're up for something "dark" and then being suddenly taken aback when my character does something terrible (but in-character, like a mercenary assassin killing an innocent witness) or engages with mature themes like abuse and/or trauma. If you don't want that, sure, I won't force anything on you, but don't TELL me I can bring my asshole murder hobo in need of second chances to grow away from her past if you aren't actually willing to go there.
[/quote]

I think the main reason or complaint for this is that there is a fine line between "dark" and just "plain edgy" in regards to characters/storylines like this. People may see you teetering to the latter.