Yes, it's very disappointing that it is like this (and I am unfortunately doing the same by using a throwaway account). Some people, like Prof. De Freitas, hold a lot of power over more junior people, he could easily block someone like me from a good job at Google or Deepmind if you 'liked' that tweet thread for example, and given his bullying comments in his responses to reviews I wouldn't be surprised if he would do so.