Depends on what you're making.
Trying to ferment a warm, red grape wine, in a closed bucket with an airlock & you'll be repainting your ceiling
Trying to cool ferment something like a traditional mead or Riesling grape wine, in an open bucket, all the way to dry, and you may get some oxidation - maybe not enough to change the color, but it will affect the flavor a touch.
If you rack to secondary to finish the fermentation, do you take the sediment with it, in hopes of fermenting dry, or do you leave most of the sediment behind to see if you can 'hang'/'stick' the fermentation for some residual sweetness? The latter doesnt always work, but does sometimes. I dont advise it for new winemakers.
The only time I could see any reason to add sorbate to a cloudy wine, would be in an instance where you're making a high-flavor, low-alcohol, sweeter wine/cider. If you're in secondary, and you want to add more flavor layers (fruits added in secondary have a chance at retaining natural flavors and sugars for residual sweetness when the yeast are starting to decline, old meadmakers trick), then sorbate may help. Other than that, always added to cleared wines.
That's part of the reason why you find so many differing opinions. Part of it is the outcome they're hoping to achieve.. The other part is the date at which they posted the information.. Wine making science and knowledge is developing so fast that it's difficult for those of us who are trying, to even keep up with it.
I have some 'general' things that I do, but to make every batch exactly the same way, regardless of flavor, style and approach.. It's limiting yourself, in my eyes.