What's funny is that after demonstrating the loop you still have to give a concrete number of times that you repeat it. You can't deal infinite damage, but you sure can do a googolplex damage.
https://research.phys.cmu.edu/biophysics/2021/01/09/nobody-c...
I'm sure it can be entertaining to try and deal the largest possible finite amount of damage, which requires finding uncommonly large numbers.
Beyond that there's the likes of Busy Beaver numbers and beyond that is Rayo's number.
Btw, Graham's Number is less than BB(49 bits) [1].
[1] https://codegolf.stackexchange.com/questions/6430/shortest-t...