To be fair acro, your right on luckyfish.io being garbage 🗑. I didn't conduct my own DD before playing there, that is my fault. Sure, maybe I was being a bit of an ass, in all fairness there rules talk about 1 word spams, not 4 word being considered spam. Anyhow, it is what it is, lessons learned.
This is a harsh rule, but if it's there, it means their action was justified. Did they ban you in the chat or on their website? I mean, not being able to right in the chat is one thing, but not being able to play or withdraw funds is another. The former might be justified, although I see nothing bad in you writing "good luck for us all", but the latter is definitely not okay. I didn't get if you have access to your funds and if you had any on their website at that moment, but I hope no money was lost because others pointed out that this casino has accusations against them.