There's a healthy way to be a critic, which is helping people find and enjoy works they didn't notice.

There are also unhealthy ways of being a fan, for example if you admire someone there's probably someone else you despise. It's much better to follow the title of the post and believe in people in general.

I imagine being a healthy critic is a skill, something personal to be worked on.

It’s just so easy to be critical and even if you have good intentions, being critical can take the wind out of a dreamers sails.