1. It allows ANYONE to have a voice and post freely (racists, pornographers, far right, far left, pro-LGBT, anti-LGBT, anyone sharing or promoting (so called) "fake news"/ " missinfo" / "dissinfo" / "hate speech", etc.
2. It is *too technical*. Comes with more of a learning curve than most legacy social platforms. I.e. which apps or web versions to use, handling public and private keys, how to connect a wallet, understanding what relays are and how they work, etc.
3. Cannot edit or delete content