Naturally I find it funny, too;) But think about it: It's the first time lesswrong members from Germany meet, and they already make jokes about Jews, and how they will take over the world.
I'd be surprised if Eliezer was offended, too, but I guess it just wasn't worth the risk of annoying possible readers. I'm pretty new here and most don't know me very well, so I probably should make such jokes in private or where the chance of misinterpretation is otherwise very low. I wish I were a Jew, then I could make jokes about Hitler all the time, and everybody would understand that I'm definitely not a Nazi. ( I really envy Matt Stone...)

there's a small possibility I might make it to a German meetup

This would be great!