N.B.: I am not the suspending mod, I am merely offering my take on the situation.
I imagine this suspension came along partly as a product of the recent events in SFF chat. Under normal circumstances, perhaps "that's what she said" is par for the course in Mos Eisley - but this can hardly be called "normal circumstances".
At the moment, Mos Eisley Cantina is being... not babysat, but supervised. There's a desire to encourage the SFF chat community to conform to similar standards as the rest of the chat network, which is a standard is hasn't always lived up to before. That culminated in the recent events.
I'll quote a message from a SciFi mod:
Alright, this is what's up. Everyone in Sci-fi & Fantasy.SE chat will be on their utmost best behavior this weekend. If you see problems brewing, help guide your fellow users back on track. Flag things that need a mod or a CM to clean up. We're going to be super-liberal with suspensions, so behave. Be nice, don't gossip, and stay on topic. If additional chat rooms pop up, please do us all a favor and copy this message in there so people are aware.
The Be Nice policy does also make brief reference:
- inappropriate language or attention
Avoid vulgar terms or anything sexually suggestive. Also, this is not a dating site.
While SFF chat is being chivvied back to being Nice, it's probably a good idea to refrain from the usual jokes.