If you had visited any of my exit nodes via port 80 or 443, I had a lander on them stating that it was a Tor exit node and to please contact me if you wanted your IP to be blacklisted from it. I also stated that there was no useful information contained on this server (by design) that would be helpful for any evidence gathering or investigations. Seriously, all they had to do was plug my IP into a browser or do a simple scan of it but I suppose that's asking too much from LE lol.
Additionally, Tor exit nodes are public and all they had to do was look into my IP more than 5 seconds after finding it in logs somewhere and firing off a warrant or subpoena for it. The first two were straight up vague templated fishing expeditions. The 3rd subpoena actually came straight from the DOJ and was a lot more detailed and serious.
They should know what Tor is and know that any Tor server contains ZERO info that would be able to assist them in whatever they are attempting to investigate.
Sure, I do think such situations require follow-up but as soon as they are informed it's a Tor ip, they should know to drop any pursuit of getting evidence from it. They do not, they continue to go after you via legal means. Even though I had the EFFs help, this entire process still took months.
It's pretty stressful to be in a situation where its lil ole me VS the entire United States government who has unlimited resources, time, and money to go after you.
I am extremely blessed to have had the EFF lawyers at my defense and will forever be a life long supporter and donor to them. They really do fight for our digital rights and can help defend you in a digital equivalent of a David versus Goliath situation.