Cheer up! You're not the target of a rude joke in chat. Or, you're not the only target of a joke in chat.
The trick lies in the source of the original comment:
Just stopping by to say [this user](https://math.stackexchange.com/users/current) is awesome. Great to have folks like this around.
Note that it links to
https://math.stackexchange.com/users/current, which is the profile of the current user: you! (Without "special powers" you can wean this by paying attention to where the link actually goes to before you click on it.) In your case it goes to your profile. In my case it goes to my profile. And in the case of the reader of this post, it goes to their profile.
So it seems that everyone was the target of this prank. Alternatively — taking rolfl's interpretation — everyone is being flattered by perhaps our most polarising user; take that however you wish.