She was more well known longer ago when there was less material. Probably a lot of her stuff has been remixed and reused the original authorship has been forgot

She was more well known longer ago when there was less material. Probably a lot of her stuff has been remixed and reused the original authorship has been forgotten. More recently (>2000), I believe it's become apparent there are quite a few errors. Little things like rivers misnamed or roads or rivers mixed up. It's an accomplishment nonetheless and was a big deal when a Tolkien fanship was more niche.