Yes I think SSO would be a benefit.
People are generally used to doing one of these:
- “Go to this website and register an account.” This is e.g Reddit.
- “Go to this website, register an account and you can access all these other services too”. This is stuff that Meta, Google etc offer via SSO. SSO is largely invisibile to the end user.
Fediverse at the moment has a lot of “huh, why do different instances have different stuff and why can’t I just access all of that? Oh, I can? But why is it so complicated? Why can’t I just use it from one place?” that is definitely a hindrance to adoption until enough people are there to tell “do it like this” or the system becomes more user friendly and abstracts some of the inconveniences.
As it is, e.g Lemmy can’t even do pagination right, so there’s still a lot of work to be done before it’s a polished experience.
I like it as an idea but fear it would be used by bots and scammers.