What does your ideal git host do when one of its (non-paying) clients uses bots to clones repos so hard that its (paying) human clients are unable to clone their repos?
Improve infrastructure. Apparently they are trivially DDOSable by anyone renting a few servers and running git clone in a loop? That's a problem they should solve. And no, blocking by user agent is not adequate protection.
You're not paying for the traffic load though, Microsoft does. I think it's unfair to compare a forge run by a giant and one run by a tiny company, or for that matter, self hosting users.
