Probably not but I personally have no problem with this. pg runs an investment firm that invests to a large extent in internet-based companies. To "blacklist"

Probably not but I personally have no problem with this. pg runs an investment firm that invests to a large extent in internet-based companies. To "blacklist" the companies that want to hurt his investment opportunities and returns (really, just no longer help profit from his work) seems like a no-brainer. It gets you positive press from the group you want to attract and hopefully denies some revenue from the ones that would use that revenue against you in the future.