Basic anti-server-nuking measures

Hey!
Recently a very large server of a game community was found the target of an organised attack of script kiddies with nothing better to do. As a user and not a direct moderator of the server details of what exactly happened to the people and the accounts behind the attackers and victims are scarce and hard to come by, but as someone who has fiddled around with making my own servers I know these basic functions don't seem to be a thing, and certainly should be.

In the event of the attack, the account of a higher moderator was targeted and temporarily taken over, 2FA doesn't make you absolutely invulnerable to account theft. Following this all the text, image, and voice chats were deleted. Yes, I get that this could be significantly helped by reduced permissions for roles, but I struggle to imagine how bad extra security could be.

This individual attack deleted several months, over half a year, of text chat and images. It baffles me there isn't some sort of "deadlock protocol" option.

What I would like to see added:

• Deadlock system to prevent multiple chats with thousands of messages being wiped instantly with no going back.
  >When any channel reaches 100 messages and beyond, and the server has the option enabled, the channel gets deletion-locked. To delete this channel it must be cleared by the server owner, or if the owner is inactive, multiple moderators with the appropriate permissions.

Sounds simple enough right?

Here's hoping something like this could be considered because such a server as this with hundreds of thousands of members and millions of messages, deleting entire channels shouldn't be that easy, no matter how high your permissions are.