I don't use vim as my go to editor so I may be asking a silly question; does it just use idiotic defaults or something? I've only met a couple 'vim users' who could just hop onto someone else's vim setup and be productive, and I've never met a single vim user who could use someone else's setup without making comments about everything being different. I guess the question is do people modify vim cause they can or caus…
So when I use a non-configured vim, it's the thing that I miss the most. The rest is trivial.
However, using someone else vim is completely different!
You must keep in mind that vim is much similar to a programming language. You can remap keys all over the place. You can create exotic combinations that do wonderful and/or terrible things with few key strokes. You can install plugins that argument and alter vim behaviours.
Jumping into a well tuned vim setup is not unsimilar to starting to use a new programming framework. It's hard to be productive right away.
In that case usually, I just rename .vimrc, remap , do my things and get out of the way.