A guild max option for the who command.
For example: who guild max druids
would show only people with max level in druids.
Currently the who-command shows everyone with even 1 level in the guild and
therefore the command really isn't providing enough information about people
with 2, 3 or even more guilds. This is clearest when trying to find a druid or
psi, both of which are usually taken as 3rd guild to low level for sp regen,
stats and some utility spells.