Why not include information about modes in servers.ini? Or better yet a networks.ini with for each network group a list of modes with their type and description.
It need not be that much work either, make a webform where the irc network operators can input their list of modes and descriptions, or just wait for mIRC users to make their lists.
This could even open the way for different language versions of the channel central, just by using (or merging) different networks.ini files.
Maybe even add another indirection like
[somenet]
m=moderated
k=key
[modes-EN]
moderated=moderated
key=Key: $1
[modes-NL]
moderated=gemodereerd
key=wachtwoord: $1
