well lets look at it like this .....
your a server owner and your using a ton of the machine ur on memory just for your ircd .. let alone anythign else u have in it ... to add just one more thing into the gecos of each and every user for smaller networks is not really a problem ..... but
if your a huge network and u have a thousand users ormore on one server then guess what ..... u may as well went and not dont that and just accepted 1300 users on ur server ...... your server would have more usage for the same number of users ...... not only should this idea not catch on ... it should have been luaghed at from the begining especially when networks are going thru bandwidth attacks and such at this point in time ....... this would only add to things and make them worse ..... yes ideas are great but lets look at the reality of them and not the dream come true dating service ppl think irc has become