In this context metadata is file information that is contained within a file. For an MP3 file, metadata may include the artist's name, album name, track number, bit rate, etc. Metadata can be added, deleted, or altered.

The download rate will drop down to 0 when LW says "waiting for busy hosts" because it's, well, waiting.

You should not have to resume searches unless they have been paused or cancelled. You can have LW 'search for more results'. Is that what you mean?