Thing is, the "blue checks" aren't all Stephen King level famous. If you're doing much notable at all, and using the platform, you've probably got a blue check. I do not, for the record—I'm not sure I even have an account?—but I see an awful lot of them on fairly niche but interesting & active personal accounts. Take them out and the best content goes back to being "I'm a Twitter Shitter!" kinds of stuff, like in the very early days—and the novelty for that is long gone.
If these posters stay but let their blue checks lapse, we go back to having an impersonation problem, which is mostly a problem for Twitter, which they may want to solve. Perhaps for accounts that are likely to be impersonated they could introduce some kind of free verification system....