I mean, the rules to apply to everyone indeed - I think it's unreasonable to expect someone who is effectively an industry insider to not have conflicts of interest (conversely, it's reasonable to expect transparency about it).
The only thing in his portfolio that was successful is Techcrunch
But his investments might slightly affect his objectivity, and get his credibility attacked. And since they are not success, there is no reason he should keep them.
Seeing as TC is his biggest investment, and the main purpose of the blog is to deliver unbiased, somewhat investigative, pieces on the startup sector, it'd probably be in his best interest to pull out of companies that might bring about future accusations of Michael and TC being biased.
I guess you really can't please everyone.
The other is www.venerosoassociates.com/Part%20I%20II%20Worldbank%20Presentation%205607.pdf
Here is a Q&A with someone who has a stake which I begrudge with some commentary from some doctors, read the comments. http://histalk2.com/2009/02/05/histalk-interviews-glen-tullm...
LadyGreen sounds like a shill.