Firstly I'm not a trader, mostly because I'm scared of being ripped off and partly because it feels better to recieve invites/give invites from/to people you know and trust.
But after giving the trading.non trading debate some thought I have come to the conclusion that giveaways are more damaging to the trackers than trading for the following reasons:
* If you were a one of the bad guys (RIAA, MPAA etc) trying to gain access to private sites to gather evidence, surely the easiest way would just be to request a site or wait for a generous giveaway?
* If you have built up a good ratio at a site that you love and would hate to lose by inviting a cheater, wouldn't the best thing to do for your own sake and for the sake of the site, be to invite a similar person -ie someone that has been awarded an invite for their efforts? Isn't the trader much more likely to be someone you can trust to bring into the site?
Like I said I'm not a trader but the more I think about these people giving away invites and accounts to just about anyone who provides a couple of screenshots (very easy to simply take someone elses screenshots by the way, especially as the details are allways blocked out) the more I think that trading may be the more secure way to get the right people into the right sites!
Maybe I'm totally worng, would like to hear your thoughts on this.