Tor Project has a team that looks at relays and checks if relays are engaging in bad practices or any suspicious activity like a lot of nodes run by one operator.
how do you protect yourself from botnets? lets say just monkrus release was infected and now N-thousand teens are running infested windows installations and software tools..
Iran probably has enough money that it could pay a thousand different isps in a thousand different ways with a thousand different os versions and tor versions. This could all be automated pretty easily.
When you think about countries that have the resources to "pay a thousand different isps in a thousand different ways with a thousand different os versions and tor versions" your first thought was Iran?
https://community.torproject.org/relay/governance/