I really do understand what you're saying but I really don't know how else to acquire users, I've tried writing a blog about it and that helped but like what's the proper user acquisition strategy, I'm really anti-advertising and I don't wanna spend a lot of money on advertising instead of making the product better.
As for the reason why you can't register with mail, it's because I intentionally removed it in favor of OAuth which is way more secure than the standard way of authentication through email. When you authenticate through email, the password validation, any manipulation of authentication, the website protection from spammers, it all degrades but when you use OAuth, you're relying on the larger companies with much better security for all this stuff including less spam accounts so I decided it was the way to go.
I'll remove that small dash between the user and the points.
I'll make the button clickable too.