If anyone else is looking for one, I've used this in the past: https://github.com/marteinn/The-Big-Username-Blacklist https://github.com/marteinn/The-Big-Userna

If anyone else is looking for one, I've used this in the past: https://github.com/marteinn/The-Big-Username-Blacklist https://github.com/marteinn/The-Big-Username-Blacklist