Just an avid reader. Mostly SF/Fantasy, some hobbies, paranormal, urban fantasy and lighter, fluffier things.
... review is still there on goodreads. Only now it's approaching 800 likes so more likely to stay featured on book page.
Seriously, a "flag" on a goodreads review is not the same as a down vote on the "helpfulness" of an Amazon review to essentially bury it.
(It's just equivalent to Amazon's "report abuse" option -- and if goodreads believed the flag stating violated goodreads review guidelines or TOS, the review would have been removed already because this isn't the weekend when staff there are likely absent.)
Incidentally, the reviewer has a 4.84 average rating on Amazon (3.84 average on goodreads), is at the moment a top 20 reviewer on goodreads, has over 900 reviews not attacked in such a manner ... almost 4,000 followers -- all of which may have seemingly encouraged the author to start some drama for publicity except that this author goes after most not-five-star reviews.