And your point is ?
Anybody selling anything is a commercial post, were we to ban all the posts from people selling things, we'd lose a good chunk of the forum.
As long as people are selling things relevant to 3d printing - which, presumably members would be interested in - whats the problem ?

As I understand it - because i read the posts :-)

Bscdan saw the printer at a show, was well impressed and contacted the company because he wanted to sell the machine.
The thread was started before he knew he'd be selling them.
Not that it matters, but that's the actual chronology.