I'm getting about one email per week, along the lines of, "I saw your project in so and so thread. Your project does X. You should know that it fails at Y. Would you like to look at our project, which does Y for you?"

Except that Y was never a problem and X was also not the goal. It's just doing some mental gymnastics to act like the product is relevant.

That's probably why everyone read it and didn't reply. It's just sending slop.