quitting vi is a basic competency test.

would you listen to a doctor that could not suture a cut? how about a mechanic that could not remove a socket from a ratchet?

simple file editing. vi has been around for every. if you haven't seen it, and needed it at least once, what have you been doing?

(personal anecdote: once had an engineering VP bring up that a stray ":wq" in a document was a sign of a real engineer...working outside of where he should be..)

I used `killall vi` from another terminal for years before I finally memorized the proper way to do it.

Funny/informative story about this: There was a project, OpenHatch.org c. 2011 that tried to get people to be comfortable enough with programming to contribute to open source projects. In one of the tutorials (I think introducing command-line git?), if you followed the instructions, it would dump you into vim. It hadn't introduced to you vim by that point or explained that's what was happening, so you wouldn't even know enough to google the error. And this was a project that was supposed to be primarily focused on being newbie-friendly!