Historical blurb:

If I recall correctly, there have been several IRCds that I have coded or worked on, most of them dreamforge or bahamut based, that have had a helpop system. Opers (or designated non-opers) who were set a certain user mode received helpop notices, similar to chatops, but sendable by anyone. The user can't see the result of the command, but every +h (or whatever usermode it was) client could. The command, if I recall correctly, was /helpop [msg] but was also aliased in the IRCd as /hop [msg]. I originally saw this in one of the last versions of dreamforge that DuffJ did. It was later removed on DALnet, but I put it back for a couple of the networks I was coding for and tweaked it a bit...DALnet's (for example) was oper-only...mine was a user-mode that services could set on any user who had hop access, oper or not.