if there would be such a feature, it would be a risk that demo people could find a way around to use it too... and moving the feature from S2 licensed only to everybody... imo not good...
I don't really see the point.... The system works great now as it is now. Other then that if you spend time working on a skin what would be the big problem of going to a website to host it? The only thing I would like fixed is skins_x and how people just steal private skins.
It's not the workable either as due to the way routers work you'd have to send the skin file via the game server rather than directly to another player (else it would perpetually fail). This would effect lag in the game, and is the whole reason why the lfsworld system exists and works so well in the first place.
And because the skin files are classified and identified by their name, you could pretty much create skins with similar names. When people download the skins from you, they won't get what the original skin was but some HC stuff