Darden stopped salting the water in which it cooks pasta
According to Darden management, Darden decided to stop salting the water to get an extended warranty on their pots. Pasta is Olive Garden's core dish and must be prepared properly.
If you google "how to cook pasta", the first step of Pasta 101 is to salt the water.
This was widely reported at the time, e.g. in Business Insider: Olive Garden Is Breaking One Of The Fundamental Rules Of Cooking Pasta
However, the claim seems rather dubious to me. Most cooking pots, particular for professional use, are made of stainless steel, which is very resistant to corrosion. I have used them myself for cooking my entire adult life, as have most people I know, and I have never heard of them being damaged by salted water. Also, most liquid dishes, such as broths and soups, contain salt, so a warranty limiting salting would considerably interfere with regular cooking practices - it seems unlikely a restaurant would accept that.
Finally, in a related question on cooking.SE: Is there evidence that adding salt to water prior to boiling can damage a stainless steel pan?, one answer claims that while stainless steel can indeed corrode, the effect of salt is negligible.
The claim about Olive Garden and salting is referenced in many publications, but they all seem to be based on the same presentation cited above, so there really seems to be only a single source.
Is there any evidence that Olive Garden had a warranty for their pots that restricted salting?