[geekster777]

At the big companies I've been at, it's because no one (myself included) will read them. Sure, they'll read them at first, happy to get back the 25 minutes. Then new meetings will replace that time until it cascades into a series of low-signal notes that are infeasible to keep up with.

Similarly, I've seen so many folks in leadership that get the feedback of "the engineers on the floor have no idea who you are, what you do, or why this re-org matters". The solution? Publish a biweekly newsletter about what they and the rest of the org does - that cascades with every other level of middle management doing the same. All getting filtered into the same unread folder, leading to the same feedback as before.