That's not the protocol's fault, but it's pretty much one of the biggest reasons most common people use the protocol: to pirate.
Get caught pirating? Probably get some fines, right?
Sheesh, please do a more thorough research. It's technically not DMCA (because it's not called DMCA), but Germany and Japan do have similar laws analogous to DMCA, and I'm pretty sure that further digging would reveal more countries that have an analogous process written in law.
Though really you could argue that the Berne Convention already covers the most obvious copyright violations you get from torrents which means that effectively every country on Earth has laws against bare-faced copyright infringement. The WIPO Copyright Treaty is most notable for Article 11 which effectively prohibits the circumvention of technical measures (DRM).
It may be practically difficult to litigate someone in another country, but it has happened in the past[2].
[1]: https://en.wikipedia.org/wiki/WIPO_Copyright_Treaty [2]: https://en.wikipedia.org/wiki/The_Pirate_Bay_trial
It's a novel layer 1 crypto with some interesting tech behind it. A lot of decentralized nodes inspiration from BT went into it as well.
I think a major factor there is that IPFS supports pluggable transports, so it can easily be used in both backend and browsers environments directly, while WebTorrent (powered by WebRTC) can't directly communicate with most traditional BitTorrent clients (which use TCP/UDP directly) without going through a bridge node.