One advantage to leaving the configs around is that the next time you install the app, yiu get it set up just the way you had it before.
Also, AFAIK, this mirrors how command line utils would work.
Why would you remove an app if you want it to stay set up? iPhone has the "deleting an app will remove its data" thing for this reason.
Why would you remove an app if you want it to stay set up? iPhone has the "deleting an app will remove its data" thing for this reason.