Problem: If you have only one reader-db, you will never receive db statistics if you send the irc_slash bot a 'dbs' command.
The reason for this is though the script is called balance_readers, it never does call the log_reader_info if if ($n_readers < 2)
So the table dbs_readerstatus is never populated with data.
What would be ideal is if the check for N<2 were moved farther down in the code such that itt would only prevent adjust_readers from being called.