Yes, and that’s why @Jeffrey_Moore is right that keeping tabs of what comes from where, and making said database easily searchable, is a good idea.
To keep things in the music analogy sphere, wouldn’t you agree that there’s a huge difference between building a Napster for artist pictures, and building the Musicbrainz of artist pictures ?
Ad absurdum, are we to understand that RoonLabs’ official position on copyright law is that it’d be OK if a user uploaded the Wu Tang Clan’s Once Upon a Time in Shaolin to The Pirate Bay, because it’s absent from all streaming services, provided that TPB comply to DMCA requests if and when they hit ? 
To take a really innocent, but somewhat by-the-book example, I couldn’t in good faith go take a picture from a band’s Bandcamp page and upload it to Roon, because neither you nor I can know what the contract that was negotiated between a photographer and / or their rep and said artist was. This becomes even worse when you’re dealing with multiple jurisdictions: earlier in this thread, you were encouraging an Italian user to upload material that they in all likelihood don’t have rights to. The only thing you’re crowdsourcing there is copyright infringement, and it’s a very different thing than contributing reviews that users themselves wrote, or crowdsourcing the training of a portrait-framing AI.