This mindset is how you get lots of IDE/dev-env-specific/platform-specific cruft inside of repos instead of pristine repos. It makes both contribution and maintenance difficult over time. While less of an extreme issue as IDE/dev-env-specific/platform-specific hacks/scripts littering the repo, gitignore entries should be generally justifiable, not ever-growing cruft to be added by each developer specific to their situation.
replyFair, but it depends how uniform the culture is around a particular project. Is it haskell and everyone is using emacs? Sure, include those. But trying to chase the requirements of half a dozen different editors is silly.
replyThat's the thing though, you don't need to do that.
Whoever is using whatever editor can do it, so the effort is distributed to whoever cares to contribute.
replyThere is no meaningful penalty for it to be not up-to-date. There is only a benefit for people who come in when it's already configured, as they don't need to configure anything anymore.
(I say that but I'm using a global ignore too for eg ai configuration like skills as I like to half-ass them before discarding again)