It’s not the bishops or priests promoting the unapproved apparitions, nor CAF as we’re not allowed to post about them (which I think is a prudent move if only to stifle 500 Medjugorje threads).
Seeing as how it’s a free country, anybody can open a website or go on the news claiming to see or hear Jesus or Mary. I certainly don’t go running after them unless I see some approval from a bishop. Of the lesser-known apparitions I take an interest in, two are bishop-approved and two others are approved for faith expression. There is another in my area that is extorting money and preaching prepper stuff and the bishop has already denounced it and told Catholics not to have anything to do with it. So I don’t have a lot of suspect apparitions in my life.
I think the bishops tend to say something whenever a claimed apparition really goes off the rails, so I rely on their judgment, at least in USA.