I wish the post made more clear, ideally right at the top, that the new fee applies only to third-party apps that access the HIBP API, not to end users whose email addresses are being checked against the API. You have to read through the post a bit before that becomes clear.
Individual users who just want to figure out whether they've been pwned will not have to pony up the cash. They can still visit https://haveibeenpwned.com and get that information for free.
Perhaps it could be made more clear, but from the post I thought it was very apparent he was only talking about API abuse; most of the introductory text was concerning rate-limiting.
It would also be great to emphasize that this only applies to the HIBP API, and the Pwned Passwords API will still be free. (It's mentioned about half-way through the article.)
I completely missed this because of skimming. Almost jumped the gun on subscribing. Use the pwned password API a lot. (I use the email-based one not at all.)
Individual users who just want to figure out whether they've been pwned will not have to pony up the cash. They can still visit https://haveibeenpwned.com and get that information for free.