"Yes sir; we're all aware."
I suppose Tom Six should feel proud for achieving what he has with the Human Centipede series. From, let's say "humble", beginnings - a simple b-movie body horror tale with a horrific (and creative) premise - Six gained obscure pop culture recognition for a gimmick that makes everyone gag just a little. Someone like myself who is grossed out by toilet bowl selfies, being sewn mouth to anus is pretty unsettling. And a little funny, too. I had a great time watching the first movie in the theater, with an audience giggling along the way.
The sequel, (Full Sequence), was a joyless affair of self commentary, pointing a finger at his audience by taking things to the next level of disturbance. If the first movie was Drive, consider this to be Only God Forgives. The follow up nobody expected or wanted; I suppose Tom Six deserves applause for that.
I suppose much about Tom Six, but, he might just suppose less of himself.