Going through Twitter, it's just a bunch of insane people praying on their knees that these kids have horrible experiences on set so they can blame JK Rowling's transphobia. This one is by far the craziest one I found:
Julie Soto has been banned from RomanceCon because of her Dramione fanfiction (well—mutually decided she should not attend but it was after a cancellation campaign of other authors saying they wouldn’t attend if she were allowed to be there)