5PH so a solo pool.

I wonder what's the most PH in this pool from a single user.
I think the group buy was doing 20PH
Wondering here too, at least what the maximum speed is that the pool can support in total, for example, if a 100PH connected to it would it be a problem?
It could probably handle all 200EH of the current bitcoin mining network if you could find it. Last big rental was 500PH.