So, either this is going to be locked, everyone's going to be like "OMG YOU CAME BACK", or no one will care at all. Anyway, My good friend "Anonymous tipper" has been saying that recently there's been alot more butthurt people that aren't too good at taking jokes anymore. Dude. Jokes are meant to be jokes. If someone calls you fat, laugh it off and listen to some Meghan Trainor. If someone calls you flat-chested or whatever those people care about, shake it and laugh it off. Nobody likes to hear your "offended" crap, especially if they meant it is a joke. If you actually find it offensive, then ask them to stop. You don't need to try to get them IP banned forever. Jokes are jokes, and are not meant to be taken seriously. ~Aussie
Considering how many people are just mean or trolly out there, I think that they could not know your joking, and think your just trying to be rude/offensive.
It depends on how one jokes about it. They can also use "joke" as an excuse to insult you such as Example: Haha you're like so fat and ugly, not to mention stupid and retarded. Just kidding! Yes jokes are meant to be jokes, but every joke has its limits. There are somethings you can't cross over, even if it's meant to be a joke.
Of course racism is not a joke. And of course if someone uses it as an advantage, especially to someone who barely knows you, then yes, as said, ask them to stop. If they do not, then it would be a good idea to contact staff.