The real reason I make careful notes in my info file is for myself. I want a reference for the next time I go to the venue. I'm glad other people like the detail, and I hope they find it useful; I sure do.
one of the main reasons i like descriptive text files
from others is it's helpful to me when evaluting equipment for a possible purchase (mics, pre's, a/d's, etc) even if i don't know the venue. knowing whether a person is 10 feet or a 50 feet away makes a big difference.