Add the used scheme to name of replay
Put the host's scheme name into name of the replay, so the replay file would look like "2008-12-20 00.48.27 [Online] [BnG] NogardDerNaerok, Javi-2, @Konar6.WAgame" or "2008-12-22 01.14.16 [Online] [Team17] Snoots, @Konar6.WAgame".

The scheme name isn’t currently being transmitted over the network at the moment, so this would only be possible for games which you hosted.
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FoxHound commented
I completely agrre with this idea. If it is not possible to add the scheme name in the replay, why not the name of the game that the host used to appear in the channel? It would stimulate people to people write good names for the games (it will appear less "join pls funny game" on anything goes). Also, it's hard to find specific replays that you played long time ago without the name of the game played. it's easy to forget the date that you played, and sometimes you don't remember the players, but you remember the scheme. it would be nice to see the name of the replays like this:
Shopper, 2011-01-31 01.12.52 [Online] @Player-One, Player-Two.WAgame