Sure, but all those threads are 99% conjecture. Because a site is buying links and (probably) has a penalty proves nothing. In most cases, there's plenty of other possibilities. And please note I didn't say Google are not penalizing link buyers, I said "most of Google's actions have so far been against link sellers"
There's always threads analysing Google penalties against Google Gamers, and few of them include much in the way of credible evidence, and as (in most cases) we never get to see the sites concerned, we are getting a lot of assumptions, misinterpretations, and fair bit of plain old fashioned fiction.
But, back to the topic. Do you really feel that it's legitimate to try and subvert Google's index and wrong for Google to try and stop you?
I'm not going to get into a big argument (been there, done that, it's all on record!), but Google's view is that you can do what you like with your site; but whether they choose to index it is a matter for them ... and I think that's a perfectly reasonable and legitimate (ie within the law) POV.
[edited by: tedster at 2:49 am (utc) on June 23, 2008]