Late to the blogging game and caught in the throes of newbie enthusiasm, Netscape cofounder Marc Andreessen hasn't yet learned the virtues of thinking before clicking the "Publish" button. Here's the story of the post he quickly came to regret.Andreessen picked up a recent Valleywag item on Microsoft's "people ready" ad campaign. In an ethically questionable deal, Federated Media bloggers agreed to tout the slogan. That, in turn, inspired him to claim that blog.pmarca.com is "so not people-ready." (A Google search still shows the missing post.) The Andreessen of the '90s was a famous Microsoft trash-talker, and this seemed like a reversion to form - but not for long. Almost as soon as he wrote it, he reconsidered and deleted the posting. Could his cowardice have anything to do with the booming business that Opsware, his boring but modestly successful software company, does with the giant of Redmond?