I'd enjoyed doing these. Mostly, I would plan when I was about to record one, to avoid as much as possible "um"s and the silence of gathering thoughts. I wanted each Voice Post to be a performance, not a ramble. Plus there was no way to edit them, except by redoing them. So, scripted it was!
(I even had an idea for a voice post that I've yet to do: redoing the theme song to Friends as if the show had been given a gritty, post-apocalyptic reboot. All sinister-sounding and gravelly-voiced as I'd go "So: no one told you life was gonna be this way..." followed by scary sound effects...)
I'm not an actor, but I think that I have enough performer instincts to speak interestingly, at least. Voice Posts were one way of doing so.
I still have these, including one I'm particularly fond of about Optimus Prime singing. Plus I can still shoot video — and even edit them, at least the beginnings and ends of them (i.e. only what my tablet's camera tools provide; I don't have any additional video editing tools on it) — so, maybe, I could do that more.
You'll still hear me.