It's not only some rando on the internet. There's always that one co-worker with a wannabe-vim-hacker setup, that you have to help occasionally with some real work task and nothing in their setup ever works effectively (bonus points for only using DVORAK). After showing them how much easier things are with autocompletion in intellij, next week they proudly show their latest installed emacs-plugin, that only does half-assed keyword completion, without being aware of variables, imports and the program structure. Such a waste of time. Lately I've started to just refuse cooperating under such circumstances, unless they truly show they know their tools.

Mastering the commandline is of course still important, just please not for editing code.