PlanetScale Offering $5 Databases

I like PlanetScale, but they already have precedent very recently for having a free-tier and then cancelling it for a minimum of $40/month plan, which made many people switch. What's to stop them from doing the same here?

Be wary of building a cheap hobby project on it expecting pricing to stay consistent. If $40+ isn't feasible for you, you may be trying to switch off to a hosted PostgreSQL option, with all the pain MySQL->Postgres entails, soon.

Why would we? we make a (small) profit on these cheaper tiers. We are a sustainable and profitable company. Also the free tier wasnt cancelled very recently it was 1.5 years ago so you are reaching a bit here.

A bit of unsolicited advice:

This post is the first time I've heard of your company and your blog post interested me.

When proprietors go to the mat in the comment section, I immediately lose any interest in patronizing them.