In our South Austrlalia facebook group we once again had a discussion about bad logs eg just writing TFTC.
Many commented that generally 'the better the cache, the better/longer the log will be'.
There are many metrics about cache quality (FP, FP%, Wilson). A new measure could be 'Average log length'. It would be great to see a new stat displaying this. Also by graphing the average length by CO, you can determine who's caches are generally best appreciated.
This stat is already available by cache name in the profile stats ('Hides' tab under "Log Length, words:" ) so it may be relatively easy to create a graph for this metric.