This is my current attempt at preparing to counter the spam waves that will be appearing as the fediverse becomes more and more popular.
It involves the creation of whitelists based on a chain of trust between instances with easy ways to add and remove into it with few overheads.
Let me know what you think and if you’re interested, please do register your instance at https://overctrl.dbzer0.com.
You’re right about the spam, volunteer moderators are helpless against it if they decide to spawn thousands of instances and accounts to attack. A whitelist instead of blacklist style of federation might be necessary now. I just hope it doesn’t create too small of a bubble or certain large instances start to monopolize, like the way e-mail went.