-reward all tournament winners with additional prizes, i.e., for first, second, and third places, respectively;

I suggest awarding special points to the top 5 players in any tournament.
5x for 1st place,
4x for 2nd place,
3x for 3rd place,
2x for 4th place,
1x for 5th place.
Also, one point should be awarded for each online game won, as reported in the corresponding thread.
These points should be visually displayed (e.g., a luck symbol from Heroes III) and located under the user's avatar. Only the organizer should be able to award them after the tournament ends.
Why?
1. It will increase the prestige of unofficial tournaments.
2. Forum members will be able to identify experienced players.

P.S. The points awarded for placing in a tournament can be adjusted.