ColdFingers

In that case, the joke should be called out for being inappropriate period, to men or women. A particular gender needs not be mentioned.

Don't you think the guys would have been removed from the talk, even if Adria didn't post the picture to twitter?

I do believe the person intended the joke to be private. It wasn't smartest or most mature thing to do, but I don't think it's much different from a couple guys texting each other jokes and Adria just happened to caught a glance of their cellphone screen.