Definitely agree that the effort to set up arcanist isn't huge. And at my current work, it's baked into our common Dev PC setup, so it's almost zero effort. But there is an effort, and a dev/user who is just passing by to fix a typo or suggest a one-line change in some code isn't going to be willing to do that effort.

I find this rather interesting (and a little bit weird, to some extent), because IMO the arcanist command line tool is one of the things which IMO _add_ value to Phabricator and sets it apart from it's alternatives.