Well, I don't disagree. If I were in charge at Docker, I would be embarrassed and very annoyed by that badge.

But not nearly as furious as I'd be had it actually read "I reject red hat patches" as claimed above.

Meh...I wouldn't. It's definitely an ingroup-humor signaling thing, but I find it hard to believe that someone would read that and seriously get offended unless they're being self-righteous.