¿Por qué no los dos?

You got me. My week-end is ruined :)

Probably user active during the past 6 months (posting, commenting, …) vs user active during the past month

First of all, thank you for creating Lemmy!

• Are you confident that ActivityPub is the right protocol for large numbers of users/communities/instances? I’ve read about concerns about the scalability of ActivityPub due to its “push” nature, and I’m wondering how reliable those concerns can be.
• Is there a “right” maximum size for instances (user or community-wise) so that the load and reliability is properly spread?
• (On behalf of a colleague not yet using Lemmy) Is it planned or enviable to provide OAuth/OpenID for auth, so that a user could have created an account in instanceA but log in to instanceB with the same account; potentially reducing the load on instanceA and/or allowing interaction with content federated with instanceB but not instanceA?