It depends on what kind of beer you're making and what yeast you're using …
Other than kveik, I can't think of any yeast that would benefit from those temps.
If you haven't read it, I highly recommend Stan Heironymus' "Brew Like a Monk". Belgian beers are typically pitched at temperatures that would make Chris White cry out in alarm and allowed to run at temperatures in the range described.
I've read it. I don't recall many beers that we're pitched at high temps.
I can't remember the specific section that referred to pitching temps, but I do remember a line that Belgian brewers "… pitch hot and under pitch …".
As far as fermentation temperatures go, there is a chart in the book that shows temps for Achel, Westmalle, and Westvleteren all using the same yeast top cropped from Westmalle. Westvleteren fermented at temperatures between 80 and 84º. That stuck out in my memory because they were also comparing three different fermentation methods: Cylindro-conical (Achel), closed cube (Westmalle), and open (Westveleteren) fermentation. I read in another interview (I'll see if I can find it, but it's been a while) with one of the brewers at Westvleteren that they were more concerned with the rate of temperature rise, that is to say temperature spikes, than they were with the temperatures ultimately reached. The logic was that a spike shows yeast under stress whereas a gradual rise is just yeast plugging happily along.
That being said, a 5 gallon batch isn't going to have the same thermal mass as a commercial batch. In seven years, I've not been able to get any of the Westmalle derived strains from either White Labs or Wyeast to break 4ºF above room temperature which is consistently between 68-72ºF in my basement brewery. I've even tried wrapping them in blankets and sticking them in those weird silver bags that groceries get delivered in these days, and wrapping them in blankets inside those weird silver bags.
The beers taste good so I'm loathe to go to the extreme of getting a heater for my carboy. I've got better stuff to spend my money on.