Here on the MB forums we don't really discuss piracy.
As you can imagine, it would make life much more complicated for everyone if we went down that rabbit hole, rather than focusing on what we do best (having a great database and tagger). There's other forums and communities where you can ask about that kind of thing
MB/Picard never downloads files for you, and doesn't store actual audio. Even our images are stored via the Internet Archive.
I rarely use 'scan', I always use cluster > lookup if I have entire albums.
Then the whole album gets matched, and you can right click the album in the right panel to find the right edition/version etc. (lookup uses existing tags, while scan uses the fingerprint/actual audio information, and is much more likely to split and drop your files into compilations etc, for the obvious reason of the fingerprint being 'correct' for potentially hundreds of albums with that song on it)