First, is the marketplace at torrentinvites.org legit? Second, is it dishonorable to do such things? Third, how to avoid scams? Fourth, are there alternative marketplaces to have a sense of whether the price is right?
UPDATE I wanted to thank all for the feedback, you made me change my mind and saved my ass from some costly frustrations… good thing I asked here first!
Yes. Don’t do it. On the off-chance it’s not a scam (it most likely is), you will be banned if you or any of the users connected to the seller are found. If it’s also one of the top trackers you buying your way into, you’ll be banned on all other top trackers as well. They are very collaborative that way.
If you’re willing to spend money, give usenet a shot instead.