It's easy to understand why you'd want to defend your employer and coworkers, and there's nothing wrong with doing so.

Unfortunately, you've broken the HN guidelines repeatedly while doing it. You've also used this account almost exclusively to get involved in flamewars. For those reasons I've banned this account. If you don't want to be banned on HN, you can email us at hn@ycombinator.com and give us reason to believe you'll follow the site rules in the future.

From a moderation point of view this has nothing to do with who you happen to work for. It hurts your employer to have you defending it in such uncivil ways in public, though, so they're probably better off with this account banned, too.