Ok, so let me summarize what I've read so far.
A. You can't please everybody. (and some people are never pleased no matter what you do.)
B. Leaving decent log entries is a courtesy, but not a requirement. (Please note I said "a decent" log entry, not "a" log entry which is part of the sport)
C. Some people will, can't, won't, shouldn't, leave a log entry.
D. Some people need to understand that some people will, can't, won't, shouldn't leave a log entry.
E. Caches are like restaurants, the better the experience the better the tip(entry)
F. Geocachers will eventually refer to their refrigerators as their "Food Cache".