Sad to read the articles that DR IRIS posted about Goodreads.
Back in the wild and wooly days of the inner web....there was a site called Epinions that one could join and then posts reviews of movies, DVDs, books, and products.
I think you were paid one penny for each "read" your reviews got. I did a lot of DVD reviews.
I think I earned about $30 total in the first six months or so.
Then I posted a review of the DVD Mae West's last movie Sextette, and I just mentioned that while her personality had still worked in Myra Breckenridge - that here it was sad to watch....
At that point some man joined Epinions specifically to say horrible things about me and my review and then went to ALL my reviews and wrote terrible things and gave me ONE STAR, etc. - the usual actions.
And looking at his profile you could see he wrote NO reviews of his own nor did he comment on any other reviews on the site.
Some people have too much time on their hands.