Curious how much that domain cost.
It is portrayed wrongly in the movie "The Social Network": "drop the "the""
Now they can annotate anything. Imagine if the Stanford Encyclopedia of Philosophy had granular explanations on annotation.
They can move into new territories without the brandname causing confusion.
Nor should it be, as they want to do more than music. news.genius.com, rap.genius.com, academia.genius.com, etc. can all be created and enjoy a single umbrella brand.