I believe David's intent is honorable. It is highly evident that he has an obsessive personality and when he finds something he likes, he mentions it repeatedly to anyone willing to listen. I have thought about blocking his replies before, due to the fact that the majority of his posts are redundant or copy/paste descriptions from websites, sometimes hasty (as when he called out ColdIron for mistreating his boots), but I do find some of his information useful and therefore live with the redundancy.
David has mentioned before that he has been ridiculed in other forums for being a bit overbearing, so he is aware of the fact that his personality can rub some people the wrong way. I, for one, enjoy having a few oddballs around the campfire...though, it would be nice if the Nordstrom Tales were available in Cliff's Notes.
I fall in line with OptoDoc and others on this. David likes providing information and it does seem rather obsessive, but then most of us on this forum, and this thread specifically, seem at least slightly obsessive about shoes at least.
I do agree that David posts terribly often about Nordstroms, but, and I don't mean to be insulting, his constant attempts to sell Nordstrom aren't refined enough for a true salesman. And his constant references seem to actually be having a negative effect. Again, I'm not trying to be rude, but it comes off a little bit like a child who has found a new toy and wants to show it to everyone. There doesn't seem to be a deceptive aspect to it...I think David is just trying to help people out and maybe not in the best way. He's a good sport though, he's even suggested that certain people should just block him!