Ok perhaps I didn't explain myself enough.
The purpose would be to train newbies. I've had a couple of people ask me to train them how to fight on the server, but there is no area away from attackers that we could successfully do so. It shouldn't draw people away from the main area because in the training areas, there is no possibility of anyone getting killed. This means there is no reward in being there, apart from if you're being trained.
SvM is quite a challenging server for newbies, for the reason that the gameplay style requires quite a bit of practise (mostly stubby/shotgun fights). I think if we wish to keep newbies here, we need to make it accessible for them. Training them simple fight skills is one way to do this. I'm not saying everyone should start training people, I'm just saying that myself and one or two others do it to keep newbies in the game (E.G. Cola, Theking, HeAD) and that we need somewhere in the server away from the madness to safely do it.
Whilst we do limit freedom in a map context in SvM, we have to be careful not to limit gameplay freedom too much. Whilst the main focus is the big brawls on Prawn Island, we have to provide alternatives for those who wish for a bit of variety. This is the point of the challenge command, and this would add to a certain extent to that variety.