[ericd]

I think this is likely an automatic ban for an unusual non-dictionary word/phrase, probably just another automatic tool in their arsenal against spammers. I don't think Craigslist has it in for AirBNB specifically.

[foxit]

I post ads every single day of the week. This is the first occurrence of the term being blocked.

[ericd]

Yeah, it takes a LOT of posts with that unusual word to initiate a permablock of the whole word. Before that, it just counts against your dupe score, I think.