No Radiohead lyrics? Can't take this serious then. ;)

They already can be found on other sites, that's a very popular band, hence very low priority. But it would be nice to have it all in there just to be able to avoid ads and have fuller data set for machine learning.

Couldn't find the contributor's licence agreement.

The project is fair use due to not benefitting anybody financially, hence contributions in theory should fall under the same fair use laws.