From: Northwestern Georgia, USA
The game generates a lot of useful information. Some is intentional (SigInt, the sound of a ship striking a mine, the sound of a ship sinking vs. the sound of a sub breaking up) and unintentional (at the beginning of each turn, the screen may show enemy TF deployments around the Home Islands that you otherwise wouldn't see nor should you see as you have no detection or reason to see it/them). We also have mouseover info, Recon, recon by bombers (that won't accept a mission vs. a non-base hex if there's no enemy unit there, thus revealing that there's no enemy unit there), etc.
There's all kinds of useful info and non-info built into the game, intentionally and not.
It's a bit surprising that I've come to treat Coastwatcher reports as utterly unreliable. I don't think I ever got one that was accurate. CA Atago at Rabaul? It's not there. CVL Hosho at Tulagi? It's not there.
Subconsciously, I began disregarding the reports at least two games back, doing other things during that phase of the movie. Am I wrong? Have I fallen into a bad habit? Do other players get enough reliable report to use the information?
The only useful thing about the reports I can think of is to prompt me to consider, "What might my opponent be up to if CV Zuikaku really was at Darwin?"