I have some thoughts about this you might forget by morning. ;)
If we can never forget who we have been, will we ever dare try becoming someone new?
There's a reason "doubling down" and "cancel culture" are prominent concerns these days. It's a stagnating, immobilizing phenomenon– on all scales.
Because the only way intelligent beings (societies or individuals) can learn is by making errors, and correcting. Without error, there is no error-correction.
But who wants to make an error when he is always wrong? This is what social media, what "the internet never forgets", brings us. A society of immobilized thinkers carrying their bags of how to never be wrong again. How to never be open to anything, or admit to anything. Total drag!
I dream of a forgetful internet <3