It is not far fetched given that "big boobs" is interpreted in a societal context which is dominated by male gaze. That is, big boobs is "artsy" and "funny" for a man, since he is the target audience of the joke. Someone at the other end of the joke might take offense. Especially if you experience similar events on a daily basis within your professional environment. Just because something could qualify as art, doesn't mean that you are not allowed to scrutinize it.
I suggest that you employ a bit of empathy instead of drawing assumptions about the persona of the other party.
Putting up twenty links to Wulff & Morgenthaler (epic comics) and using it as an educational/critical source without context only dilutes what you are trying to say, i.e. people should more relaxed.
That being said, being able to figure out how to spell anything sensible using 8 sixteen-digit letters is an accomplishment.
