ok, let me try to explain this from the best of my understanding ^^
if services gives out a wallops or global notices, the name of the nick or services who gives out notice will be included too.
Example:
-irc.localhost.net- ***
Global -- from OperServ: n00bie do something
and as for the ircd, it may or maynot give info
Example:
*** LocOps Notice -- blah blah blah...
-irc.localhost.net- *** NetAdmin.Chat -- from n00bie: hehe
*** LocOps Notice -- Forbidding Q-lined nick christopher from emilee[88.233.16.92]
that means, user emilee is trying to use a forbidden nick.
sorry for my language.. i cannot explain exactly what i meant to say .. lol ... anyway i hope you get my point.. and p.s. i knew that someone will correct me if i'm wrong or can explain it more about it ^_^