Is this honestly something "hackers" care about? German separable verbs, maybe, but that's probably more of a signifier of the kind of education you had than business viability or hacking anything even remotely useful.

Please downvote me if I missed the meat of what this was really supposed to be about. I think maybe I just don't understand the HN community most of the time.

Also "sign" vs "log" and "in" vs "on" are A/B testable.