The mods have actually discussed this situation at length when it was raised a couple of weeks ago.
BoxDimensions has joined the forums and only posted advertising material. That makes it easy to moderate - the forums are not a vessel for free advertising.
The models may be great and 100% suitable, but lets be fair - TGC run the forums at an expense, and the regular forum members that have ventured into selling via The Store are paying for their marketing; TGC takes a percentage of each sale.
Dexon is a quandry. His posts started long before we have solid rules regarding this. We will no doubt continue to review this as mods.
Regarding the pasted responses...We have a series of standard responses which may not be personal, but they help the mods keep a better eye on the forums. If we can catch 80% of the obviously rule-breaking posts with a standard response, it gives more of the volunteered time to look at more of the forum. We reached a point where moderating became a serious chore, and it's not right that the mods spend all of their time moderating rather than joining in.
You'll see that a lot of the time the mods are giving gentle nudges and adding additional comments to the standard responses.
The standard responses are actually designed to try and make things fairer, keeping the rules as regular as possible. Of course, they don't cover all eventualities and we aren't infallible