I am the most boring and unfunny guy in AF and I tried to do stand up comedy. It's very hard, so I have a huge respect for comedians. I'm fine with a comedian joking about anything as long as 1) it's not an unwarranted attack on individual 2) It's actually funny.
Here's one of my favorite comedians doing very offensive jokes: http://youtu.be/zv8d_ry-u-Q
Here's one of my favorite comedians doing very offensive jokes: http://youtu.be/zv8d_ry-u-Q