Like in some English-speaking regions of US, Canada, maybe Australia, they end every sentence with a rising intonation like a question? Or some people, perhaps with insecurity about who they are, end their sentences weakly without determination and final authority, so it sounds like a question - like seeking approval of those around them? And then there's the "TED Talk candence" as another comment phrased it, often heard in corporate presentations or speeches, the patronizing tone of engaging with your audience like kindergardeners, asking them a non-question only so the speaker can spoon-feed the answer?

I hope you appreciate the irony of your distaste for people's mis-punctuation while also Altman-casing your objection.

It reads like NPR sounds.