There is a difference between WalMart and MercedesShop. WalMart sells a product and a competing retailer would take business away from WalMart.

In the case of these forums, we post knowledge and information on the forum with the hope of helping others who may benefit from this knowledge. Posting the knowledge on this forum, or another forum, simply serves the general purpose of dissemenating this knowlege to more people. MercedesShop is not harmed by posts to another forum. There is no theft of product or service from MercedesShop.

As such, the post by HTboy is entirely proper and, IMHO, there is no unethical behavior and, therefore, no reason for an apology.