“Please do not target CM’s, much less a Mod, with memes.”

Hello.  I was just checking out The Den, and saw Fred Smith say this to a CM:

“Please do not target CM’s, much less a Mod, with memes.”
http://disq.us/p/2z63fd6

My question is how far this goes. Sully frequently targets me with memes.  I mean, VERY frequently.  Here are two examples:

http://disq.us/p/2z62tgt

http://disq.us/p/2z62stv

Is this appropriate and if so, I’m not sure of the line.   Some clarification would be appreciated.

Thanks!  🙂