I shared this new law in the UK politics thread. Not a positive development in my opinion. Whatever side of the debate you are on, better to have the debate than to create an environment where certain views are silenced (explicitly or indirectly).
You may or may not like JK Rowling, but she has had great courage to test the boundaries of this law (police confined today no action will be taken against her), and for that I commend her.
As others have pointed out however, many won’t have the resources or legal backing that she has and will likely self censor in future, creating a narrower discourse. And narrow discourse leads to stagnation and lack of ideas. A sad fate for the country that led the enlightenment.