There are some networks (I don't recall which ones at the moment) that have not supported half-ops.
Personally I like having the ability to set half-ops on a channel, since I use voice for players in a game. Using half-ops allows me to let people have a certain amount of control (ie: being able to kick players that aren't following the rules of the game), but still have others with higher control.
In regards to
I have heard others say "OMG WE NEED DUH HALFOP'S CUZ I WANTZ TO KICK PPL Y0"
that will not get them half-ops on any of my channels...if they want that ability they must prove to me that they deserve to have that ability.