Your docs state that using a replaymod.com account is optional, but if you don't register for an account, you will be nagged to log in EVERY TIME you start minecraft. Please add an option to prevent this screen from appearing for those of us who have no interest in signing up for an account and its sharing features.

You can already do that by opening .minecraft/config/replaymod.cfg and setting skipLoginPrompt to true.

I'm keeping this issue open as a reminder to add a checkbox to the initial login GUI to make disabling it more user friendly.

There is no replaymod.cfg file. Please elaborate on where we should add skipLoginPrompt to. My attempts at adding them to replaymod.json and replaymod-rendersettings.json have been unsuccessful.

@llGaetanll
replaymod.cfg is 1.12.2 and older. On 1.14+ the skipLoginPrompt entry should be in the replaymod.json (in the online section).
You shouldn't need to add it, it should already be there but set to false by default: