I'm sorry, but I disagree completely. (Politely said, no?)
What I consider impolite, is trying to use this forum for free advertising. If tupisdin wants to advertise his paid sim-unlock service, then he should pay for advertising, either on this site or elsewhere.
There is a word, for people trying to use discussion groups such as this one, for free advertising. That word is called SPAM! (Exception--forums specifically for the purpose of buying and selling used equipment, etc.) A lot of Usenet discussion groups have become totally ruined by spam.
Tupisdin spammed this board with this thread, and I do not appreciate that. I would suggest that the board owners delete this thread immediately.(Perhaps also remove his ability to send and receive PMs.)
I completely agree with these thoughts. Boards like this one are primarily meant for distribution of information and ideas. NOT for people to make a fast buck. There are places like eBay where you can hawk your wares. I, for one, get totally turned off when in my searches for information I come up with posts with advertising in it.