The VPN provider is TorGuard for the lazy.

Interesting considering how long they advertised directly on ThePirateBay

Sounds like a double-edged sword.

How do providers check that the traffic is BitTorrent? I've always wondered.

Trackers are usually relatively well known and traffic to those specifically may be dropped

Otherwise, packet inspection on network devices should be able to discern the traffic.

I'm not well versed in this area anymore, but you can tell from the contents/patterns of packets that this source and that destination are using a given protocol.

I don't believe this type of traffic is encrypted - and the VPN provider has to decapsulate the traffic at some point :)

I heard sometimes they are part of the peers upload/downloading the torrent content and they just get a list of all the other peers they're connected to and send DMCAs to each of them.

edit: I misread your comment. I was talking about the copyright holders not VPN providers.

It says they will use firewall, so i would assume blocking the default port and maybe known trackers.

Encrypted BitTorrent traffic over non-BitTorrent ports is about to skyrocket.

Why? Doesn't think prove that their customers are actually protected, unlike the many other popular VPNs?

It proves they are based out of the US and lost a court case. If I owned the company I would do the same if nothing else but to preserve capital.

The fact that they lost a court case, rather than the users, says something about their implementation. There were several VPNs where this was not the case.