Dan has specifically stated in these forums that pictures of the regulator un-used are fine. The pictures he doesn't want posted are review-type pictures. That means any shots of the regulator in action, or any shots of the knife after being used, aren't allowed.
Amy-O has said the same thing about the killa zilla in the Busse board on BF.
I've posted several pictures of both the killa zilla and the regulator, but all were BEFORE I used them, and moderators have even posted in the threads containing those pictures, without doing any "scolding". It just so happens that I kept one of my regulators pristine, which is why I was able to take a picture of it next to the sod.