> I just want transparency. Are they done increasing prices?

The initial announcement said it would only be available to subscriptions for a few weeks. The extra usage they said was for a limited time, I think it was 50% extra and they now are reducing that by 17%, less reduction than they had said.

Because it's a monthly plan they usually have given heads up of at least a month on stuff.

The API prices outside of personal subscription have always been more. Personal subscriptions are likely there for data scraping of company codebases (when users don't opt out), and for spreading the product to then get picked up by businesses the users work at or other word of mouth for API prices which they have said are profitable.