Hi,
I have done so.
Traditionally I have allways felt that having your business details in your signature equals promoting/advertising it (just as placing business stickers on your car) and hence I have never done so either here or over at AA. I do not feel that public discussion groups should be used to promote ones business in what amounts effectively for free.
So note that you FORCE me to advertise my business in each and every of my posts, it is not my choice.
Past that, some remarks.
If "insiders" MUST identify themselves clearly, please write that into the AUP's.
Also, if that is the case I think that ANY industry connection (that is works for a HiFi Shop or Distributor, Reviewer etc.) should be made clear.
A "tag" system like that employed by AA (Manufacturer/Dealer/Reviewer/Audiophile) rather than the formal inclusion of advertising into each post.
Ciao T