He did this same disappearing act in his other thread about his workplace when he was called out for clearly not understanding professional environments. When someone pointed out that he bailed out due to it being a rude awakening, he popped back in to say, "But im right here though? Or do you just like sounding ignorant?"
Also:
So its hard to know if he is simply trolling or if he is completely oblivious how to act in a professional environment, no matter how "laid back" that environment may be. And if its the latter, he also seems to refuse to respond to any sort of criticism despite asking for GAF's thoughts. I'm curious how old the OP is and if this is his first job... he simply might not know what is generally acceptable in a professional workplace.
Basically, as many here seem to agree, this:
and this: