This is the way.

Don't worry, Reddit/Facebook/Gmail et al. still transmit that draft reply to their servers, store it against your profile, and train on it. Probably.

and ironically, most of them don't even offer the draft feature! Facebook, tiktok, etc... they send your typed message, but if the app crashes or you close it, there's no draft anywhere you can find ;)

As Ze Frank put it: I have a theory about this but it's a little bit to deep for the audience.

I was gonna respond to you but actually decided not to.