From reader perspective, I can say that those are not needed at all.
Like, why should I be interested in the author's real life or his problems? Chapter was delayed, okay, life happens. No need to apologize.
Or if you feel bad for "not delivering on time", just use the scheduling function - it exists for that reason. All you need is a small backlog of like 3-5 chapters to make sure it is always "delivered on time," even if you yourself cannot do it.
Something important, like the story going on hiatus, because life is falling apart or something? Sure, this is nice to know so I don't spend next weeks wondering what happened. But I don't need to know why the author's life is falling apart, or whatever the reason for the hiatus was. Simple "the story goes on hiatus till X" is more than enough.
As for "asking for input" - polls work best here. Not everyone wants to write a comment for reasons, but pressing that button is easy and fast.
Does it enrich my experience? Nah.
Unless it is something important, like really important, then I (personally) feel like I wasted the time reading it due to the reasons stated above.