For all this talk of fat fingering, you failed to mention that a simple purge is all it takes for all that file versioning to disappear...and you don't even have to type out the whole 5 letters. Besides, file versioning != revision control, and there are modern interoperability nuisances with it too.
Perhaps the most annoying thing with VMS is it'll allow you to set default (equivalent to cd for those unfamiliar with VMS CLI) to a directory that doesn't exist without even a courtesy warning. It was so batshit annoying that I wrote my own implementation of cd in DCL to ensure that never happened, along with updating command prompt to reflect current directory (just like Windows cmd) and certain bashisms like ~ for home directory, etc.
> Oh, and OpenVMS doesn't crash. Like, ever.
Yeah, sure...not really.