I wasn't saying that it couldn't/shouldn't be done, just that by enabling it as a feature for your mud, you're already rewarding those players who use clients that support it via reduced bandwidth costs and whatever other benefits that in itself might produce (reduced lag, etc.)

…2 bonus quest points per completed quest for having mccp enabled eh? If they use a Vassago style quest system, it'd be pretty hard to 'prove' that players were actually getting those bonus quest points. Do imm-run quests also earn them the bonus points too?

Obviously, having MCCP enabled in their clients and on your MUD is of benefit to you and your players, but does it have any sort of in-character impact at all to justify/explain an in-character bonus derived from using a client that supports MCCP? Maybe you're MUD is non-RP. *shrug*

Personally I don't like the idea of rewarding people with tangible game bonuses for using MCCP. That's kind of like rewarding them because they use cable, not dial-up. As Conner has very well pointed out, they get a benefit just by using MCCP.