I don't think it's necessarily bad humor that does the trick, but rather the fact that untrustworthiness might stem from this ""dark humor"", resulting in a negative trust..
If you go around with a username related to the holocaust and state some controversial things (or lies, rather) in the name of "dark humor", well, i doubt that that would do wonders for your reputation, or your perceived trustworthiness (Which i would say what the trust system is for.)
I already did my Around The World In 80 Days met over 2M people and did some bad things to about 120K ppl, but most of them were already sick, sorry.
I'll find a path myself. See you around, *cough*, *cough*...
I fail to see any "dark humor" in this, but rather see the words of a simple troll, which i think would be worthy of a red trust
I would probably rather leave a neutral footnote that I myself wouldn't be comfortable trading with you, but JayJuanGee took another approach which i personally don't have a problem with either.
As to whether it's against the rules,
Ever since I escaped that lab few months ago, I've traveled so many countries and met so many people, amazing!
I'll probably meet you soon. Stay tuned.
You are making some disguised death threats.... but they aren't personal...
that's (probably?) rule #8 you're breaking.. and, as i said, I think general consensus would classify you as a troll, breaking rule #3
https://bitcointalk.org/index.php?topic=703657.0