Whenever a player logs in, there are many log messages from Sortilege, effectively resulting in log spam for larger servers (I noticed this on Resurvival's SMP).
[Server thread/WARN] [Sortilege/]: [Sortilege] Couldn't find config value for path : "X", defaulting to Y
These logs shouldn't be warnings, as defaulting behaviour should be expected and shouldn't cause alarm. These instead should be DEBUG, or even TRACE logs.