Well, one cup (volume) of flour can vary pretty widely in weight (108-138g in my notebook). Bleached, whole, Rye, AP, etc and even same type across brands. A variance of 15% is not too odd from my baking experience.
Yeah that's flour's perennial problem, and 15% is enough to really throw a bake off.
Avoid any baking recipe that doesn't have a nice round number for grams of flour, and even then be suspicious. (baker's percents are always welcome though!)
A professional baker who's business I spent some time getting to know would test bake a standard loaf from every batch of flour purchased. Their recipe would get micro adjustment depending on results.
Not as necessary for home baked 1kg loafs.
The helpful answer should mention that.
i run into this so often it might as well be called misinformation. it will surface parts of 2 different sentances which completely changes the meaning or context, or removes important nuance.
I've observed similar bad results when looking up information about medications… I feel bad for those acting on that information.
Just like ads, I've learned to tune out that top part of the search result page. Honestly, the increasing noise feels a lot like Yahoo! in 2001.