Imagine having disadvantage and your first roll is a 20 but the second roll is a 1. Your crit turns into a crit fail.
I’ve seen my fair share of ttrpg drama first hand. But I have yet to see this happen and I expect it would completely demoralize most players for an evening.
I’m trying to build a small business that replaces SSO mass surveillance (think Sign In With Google, LinkedIn, etc) with a privacy respecting alternative where the technology makes it impossible for me, the service operator, to know what the users are signing into.