This is basically the "fire your low profit customers" advice that comes around ...

This is basically the "fire your low profit customers" advice that comes around perennially on HN ('yeah, but we didn't mean us!', lol).

I guess the gamble is will more than 20% of those who would pay $2 pay $10.

$10/mo is not much for a Western programmer. If they did their market research I could see them coming out on top.