I'm assuming they're easy to detect yet I'm super confident about the patterns I'm seeing that I'd bet money that it can be implemented. False positives should

I'm assuming they're easy to detect yet I'm super confident about the patterns I'm seeing that I'd bet money that it can be implemented. False positives should ideally be zero yet algorithms don't have to ban right away. If there's a relatively small team of people reviewing those spams manuallu after the algorithms flag, I don't see any problems with the approach. I of course get there are many different corner cases, Unicode characters that look like other letters etc. to bypass the filters yet they're also very easy to implement a filter that would probably detect many spams right away even with many of the corner cases. But again, a human team would still review these tweets anyway giving no room for false positives.