Comment on a photo of me, HATING or JOKING??!!! help?

[Jana]

A guy put a photo of me as his profile picture on facebook, me and another 3 guys liked it. 1 of the guys that liked it commented...

"Wow Musa have you sign a new contract??"

And these three other b****** liked that comment .

What did that.comment mean?
Why did those girls like it? Jealous? Hating? Joking?

Thanks I'm just really confused (:

[Sarah]

what does that even mean

[Misunderstoodparent632]

I would be a little creeped out if someone made a pic of me his profile pic.

He's just joking

[Aramil Targon]

It's hating on you. It means a contract with the devil which always leads to getting the opposite of what you want. He wants a hot girl so the guy is saying you are not hot at all.

[LUCIFER]

Amazing how the Internet has given birth to a new way at gaining paranoia and insecurity.

[. ? .]

It means "a guy" is incapable of conjugating "sign".