For most bad actors, a small amount of work is all that's needed to block them from a new platform like this. 1. Use email verification / captchas 2. Block ma

For most bad actors, a small amount of work is all that's needed to block them from a new platform like this. 1. Use email verification / captchas 2. Block mailinator/throwaway account addresses 3. Use something like Cloudflare/Akamai to protect against egregious bad actors 4. Add some other level of social validation like a major OAuth provider 5. Simple pattern matching - as the author noted, these are rarely sophisticated, and once you put even a small barrier up, they usually trickle down. You can even go further and just limit the features your product has specifically to hurt their use case, or you can actively shadow ban the users yourself, so they don't know their links aren't working.