Eh, honestly I would've been similarly frustrated. The recruiter seems like they are being needlessly bureaucratic. Either they are familiar with Unix and thus should know that Unix-like is synonymous with Unix nowadays or they aren't and they should take your word.
Maybe you were a little condescending but it happens and rejecting someone on the basis of this exchange seems mad to me. If FB doesn't reverse their decision here I'd be surprised/disappointed.
Maybe you were a little condescending but it happens and rejecting someone on the basis of this exchange seems mad to me. If FB doesn't reverse their decision here I'd be surprised/disappointed.