A little lacking, but it serves me well:

A lot of businesses and libraries block the ports needed to torrent or do much of anything beyond basic web access. Some places, especially libraries, will also have web filters in place to further complicate access to torrent sources. Even if by chance you could find a place that has those ports open and can get past the filters, as others have said, it is still possible for them to have enough information to identify you.

Hey, even the shitposters need some love and self care from time to time.