Earlier quoted context omitted.
In Germany at least, uploading even a single byte of content is illegal. We don't really have Fair Use here; there are only few, very narrow exceptions. It is also not even required to show that that single byte was uploaded, your IP getting logged as part of the swarm suffices. The burden of proof is on you now. It was much, much worse than in the US. While all this is technically still true today, a new law a few y…
You comment shares bytes with copyrighted content, does that mean you broke the law?
“Here’s byte 0x67, which is at offset 0x729B1A38 of Copyrighted_Blockbuster.4k.mkv, as requested” is different from “here’s byte 0x67, and it’s the first byte of my text response to your comment”.