Ah, the special walled garden of Twitter verified users. That's where Twitter is releasing its new quality filter, iOS-only at the moment. The filter will help people weed problematic tweets from their notifications.
Out, foul trolls
It is but another way for Twitter users to further refine their notifications timeline, with one app feature hiding mentions from people you don't already follow on Twitter.
Verified users getting quality filters first makes sense, as they tend to be public figures who attract online vitriol.