That's going to be tricky too because I could imagine someone offering a service to actors and other public people to help manage their twitter accounts (maybe discourage them from posting stupid shit at 1 am. I'm looking at you, Elon), in which case you wouldn't even have a 1:1 ratio.
The usual solution, historically, it to provide different levels of service based on your account type. The couple of times I've worked somewhere that the admins had a disjointed set of servers from the users was really a huge stress relief. You want admins to 'see' what the user sees, but to be able to work even if the site is being DOS'ed. And ideally you want users to be able to use the site even if the admins manage to DOS themselves (admin functions tend to have a higher fanout than end user functions, so the danger of catastrophic fanout is always higher).
The usual solution, historically, it to provide different levels of service based on your account type. The couple of times I've worked somewhere that the admins had a disjointed set of servers from the users was really a huge stress relief. You want admins to 'see' what the user sees, but to be able to work even if the site is being DOS'ed. And ideally you want users to be able to use the site even if the admins manage to DOS themselves (admin functions tend to have a higher fanout than end user functions, so the danger of catastrophic fanout is always higher).