A person can destroy the history and we won't know about it.
Nope - how would you want to do that?
Well we should trust each other at least that much that we don't select >8000 commits and change their commit log. Its only possible for
one entry at a time and is an atomic operation. So it cannot interfere with any other operation.
So: Do you think we need to disabled it because one of us well be that bad to change all our logs one-by-one? If so, we can close commits all-together, cause you could also just commit bad stuff.