The level of naivete to think it's a good idea using a microsoft account on a microsoft product for your illegal activity is astounding. Especially when you consider the amount of technical knowledge required to do such a thing.
I legitimately cannot make that connection, Microsoft has never been shy about tracking you or their tight relationship with 3 letter agencies. It doesn't take a genius to know they are going to snitch, I figured that was a foregone conclusion.
Kids need to learn about OPSEC.
The current federal government is pedophiles, they aren't going to arrest themselves.