One of the biggest barriers to Steemit getting serious traction is the 32-character password requirement, so this is a good idea. Most people who like crypto stuff know that long passwords = good. But back in the real world, most other people have terrible security habits and reuse bad passwords all the time.

Any low-barrier thing that improves people's security habits ("install and learn to use a password manager" is not low-barrier for most people), is good for the brand, so Steemit should promote this sort of thing.