No. Saying "Heil!", building national socialist crosses and similar actions are a damn bad idea if the host is german, no matter if it's meant as a joke or not. Just because it's history and more than 65 years ago doesn't make it less horrible. You shouldn't make jokes about such dark parts of history.
I doubt it's because "don't make jokes about such dark parts of history", people come to my server and make national socialist jokes occasionally. I have no problem with it. Besides, the past is the past. and national socialist's don't exist anymore. So whats the worry? And, sorry if this post made you upset or anything, I didn't aim for anything like that.
Im late, but the new CPW looks nice.