I have those addresses too, they're listed here

That's good advice on anyone when dealing with immutable crypto currencies.

Lol. Did you realize starting a post like this already gives the reader a certain first impression of you?

Lol. No sarcasm this time, this is funny

I know nothing about "Pi" and don't care enough to read up.

I've seen the "AML checks" topic, which is of course BS. You can't have a "universal" database of "bad things" if it varies per country what is or isn't considered "bad". The notion of "taint" is BS, I'm pretty sure it's designed as an attack on Bitcoin because governments and banks can't shut down Bitcoin in any other way. By attacking it's fungibility, they make people doubt it. So anyone trying to profit of this helps spread this crazy anti-Bitcoin idea.
I really hope nobody is stupid enough to pay $250 to have someone poke around in their privacy, but (ironically) I kinda expect people with bad intentions to do so. So that means if your AML "service" gets used, it's likely you'll be paid with "illegal funds".

That's unethical, but not illegal.
For what it's worth: if someone wants to pay me to tell them their Bitcoin isn't tainted, feel free

Of course they don't do it for free, they're selling the idea of taint. That's their business model, and having people believe they need to buy is their core business. Stop buying this, you're not paying someone to check the history of the banknotes in your wallet, so don't do it for electronic cash either. Fungibility is all that matters, and Bitcoin is fungible.

There are no debts in Bitcoin inputs.