Webtor is a tool, not a content provider — it doesn’t index or host anything itself. Users supply their own torrent or magnet links, and the system processes them on demand, like a torrent client with a browser interface.
That said, if someone uses the hosted version to stream content that triggers a copyright complaint — yes, I may receive a DMCA notice, and in that case I’ll take the content down as required.
This is also exactly why the project is fully open-source and self-hostable — anyone can run it privately, with full control and different legal boundaries depending on their jurisdiction.