A real pro would hang around a little, act friendly etc., before ramming the thermometer in.
This one is either a loner, a bit lazy, or just can't write or speak well on their own.
We've all seen a few of the latter. Often enough such individuals are found to be brittle, if one can ever draw them out.
It becomes apparent they cannot speak or write well, and they get their panties in a bunch when they or their opinions are challenged. Along with all of that, evidence of an exaggerated sense of self-importance will come to light.
In other words, they could fit right in around here, if they really wanted to. ;^)
I suspect that this one is somewhere up that alley.
Sometimes folks sign up without lurking long enough to get a feel for the community standards. In those cases, they're usually type A personalities who jump right in with both feet, and wind up having rather interesting initiation periods.
Still, I think it's odd behavior to start lots of discussions without posting a single word, or responding to direct communications.