>Is there a single similar case where this happened?
Legal fees still cripple people even if you win the case, I have no intention of handing insane people ammunition to grind me down for no reason. Were this a Pleroma instance I was running and I was the HNIC I'd consider well poisoning because ultimately its _MY_ domain and the users would have to abide by some sort of EULA or be briefed that I was doing such things in advance to their data. With Nitter its just meant to be a replication of existing data. 

>You don't have to identify all of them with 100% certainty, just some of them. 

Therein lies the problem, I _can't_ identify between a random user that just has a bookmark of @realgronalddrumpf and just lands at his timeline and a bot that just lands at the timeline. This requires getting into invasive practice like fingerprinting or using CAPTCHA programs. I'm supposed to be offering a privacy frontend, subjecting the users to this stuff defeats the purpose.