YYCannabis my friend, that's been going on since before J. Edgar. My name and probably drivers license number are listed in the dispensary I go to. I've been in the military with a top secret clearance. I've had a drivers license in three states. Pawned something. Been overseas. Paid bills online. And such. At this point in my life, I'm not sure what can befall me for purchasing seeds online. Were it nasty illegal, postal police (yep) would be knocking at my door with a couple feds. The seeds are considered 'agricultural products'. Customs has way more things to worry about than seeds that don't have their agricultural paperwork. With the few seeds I've just purchased online, a street seller would get more hassle.
We can't avoid lists and having our 'personal' (often public) information being thrown out there, available to anyone who even gets curious.
I take your concerns seriously. Are we being listed? Possible and probable. I, personally, don't care. Another serious comment on my part, here. Were it my choice to live my life the way I wanted, I would be living off the grid, away from city lights and loud motorcycles, and such. So, I go on.
I just gave my neighbor my phone number because he was having car trouble. I rue the decision because he is an 18 year old who sits in his first car, smoking blunts, playing on his cell phone. That's probably another list.