I'd guess that, if you really are doing enough promotion, then you're seeing the legitimate interest level for your project. Might just be something that most people don't need or, here in the age of AI coding, people believe they can make a better or more customized version of it themselves (and they probably can, it's just the nature of software now). 4300 downloads could be Claude forking your project for 4300 people to do just that.