Lead dev on the service here. Please have a look at the page, especially the comments about how unpopular views can change over time, and how the views you hold are certain to seem deplorable to someone out there (hn user nostrademons has a good quote about this which I used).

At core though, for me this is about protecting access to information and the importance of decentralized (uncensorable) identity, not about who private companies should or shouldn't allow on their platforms.