Well said, totally agree. While looking for the Project Bernanke slides I stumbled across this absolute classic internal guidance document, courtesy of the Texas DoJ: https://www.justice.gov/d9/2023-11/417885.pdf
Don't define markets and estimate shares... For example, a field like advertising sweeps worldwide, and includes lots of different products and services. Defining a "market" more narrowly, or even defining one at all, can create issues if economists aren't involved. There's no problem with referring to a "market segment,'' "sector," "business/' etc., but just try and avoid defining the "market" for what we offer. Similarly, estimating "market share" is complicated, and it implies a defined market, so guessing or approximating isn't very reliable.
Not to be trite, but it reminds me of 1984 more than a bit;
If you want to keep a secret, you must also hide it from yourself.