we know about forced handicaps in multiplayer. we use handicaps in hotlap mode to divide racers to specific categories/groups according their time in HL.
i am organisator so i need to check their times manually from their HL replays.
it does include demo users who registered LFS nickname at www.lfs.net, but we always have to see at their online stats to find out if they are demo (Travelled distance: 0km) or S2 players
it is not very practical