To be fair, thousands of former check-mark-holders had already subscribe, but the actual end of verified accounts itself didn’t spurn many more to do so. And I suspect the numbers are worse than they seem, as there were more than 28 sign-ups, but there were also a lot of cancellations by people who previously signed up and then realized the pointlessness of it. So I could easily see people who just signed up coming to the same realization.
Supposedly alarm bells were ringing in Twitter headquarters over this… and they’re clamping down hard on “block the blue” movements.