The concern is that those policies were put in place before he became CEO. They're a part of Mozilla culture, yet he made no (publicized) attempt to reconcile

The concern is that those policies were put in place before he became CEO. They're a part of Mozilla culture, yet he made no (publicized) attempt to reconcile his well-known personal views with them. That's a problem! He could have let the campaign bluster. A good CEO will piss a few people off anyway. It's inevitable. Eich could have let a few developers quit, but shown everyone else (especially the board!) why he's the right person for the job. Unfortunately, his recent bumbling turned a medium PR mess into a major one, and demonstrated that he might not be CEO material after all. That's my take anyway -- I don't believe the original donation was the cause of his resignation, just the trigger. There are a number of Silicon Valley companies that would hire him to a high position today. Probably not to CEO or HR of course. Or PR. But remember how many influential friends he has -- they won't be swayed by this mess. In a few months, when all this has blown over, I expect most companies will be happy to forget this ever happend. His life is far from ruined.