I completely agree with that. Although I also think that relying on one third-party auth solution is bad. I would propose an intermediate solution: Implement

I completely agree with that. Although I also think that relying on one third-party auth solution is bad. I would propose an intermediate solution: Implement the use of several auth solutions (e.g. like StackOverflow does). It takes some more time since ID management won't be as simple, but it's still incredibly less complex than implementing your own solution. Frankly, I would happily move away from local auth solutions (except for critical services, e.g. banking). But I don't want to entirely rely on one account type either.