Oh, I don't recall seeing anyone sharing Pirate Bay links; why not share just the magnet uri?

Or is it about sharing the domains of mirrors?

Facebook used to(?) block links to pirate bay even in private messages; Google refused to take them down in search

Very fitting of https://news.ycombinator.com/item?id=1692122

Yes

And by the way I prefer Google's approach in this particular case

Zuckerberg strikes me as far too adaptive, too fair weather