It's a tough balance. You start a one-dev project for free that gets big, suddenly it's next to impossible to keep up with support requests.

If your project is targeted at developers, you might be able to find someone you can trust to help you out, but if it's targeted at non-technical users that's like finding a unicorn.

I'm not arguing in favor of keeping people out of course, just that it's not as straightforward as "issue templates bad" vs "RTFM noob".