Lets devide this topic into its two main points:
1) What's the purpose of the rank?
- Show how good a player is or how many games this person have played?
- Qi doesn't show how good a player is, as such we can use an alternative system
2) What alternative system suits Toribash?
- It should be "farming free"
- Directly correspond to how good a player is: Winratio, wins or similar.
We could use dynamic points; I score 1 point from you, that 0.5% of your total points, as such defeating someone who has lost fewer games awards more points, hence beating someone with points is worth more than the lad without any points.
The big problem with such a system is the capacity of servers and how to store this data. Then it would ofc require some tweaks, some testing and then take time to implement.
Now back to the elo system; it sure has its flaws, but it provides a better estimate of players midrange, with a few hundred games, however, at the very top it becomes obsolete, as kris put it: ""I manage to get a good rank at Aikidobigdojo.tbm let's say it is mod rank 2, I need to win like 8-15matches in a row to make it to mod rank 1, while it's enough to lose once for your rank to drop to 8-10." which might seem unjustified, however this is how the elo system works, except you are usually paired against opponents close to your rank and hence the loss ain't as disastrous as to losing to someone who have a horrid elo rank.
But, what is the purpose of the rank?
Personally I couldn't care less for how my rank is as I play for the sake of having fun, but it does however seem the QI-rank system basically is a dickmeasuring system over time spent in aikido mods while perhaps that is what the belt already shows us. As such I would say that the Qi-rank is one of the most horrid ideas ever, not even including the argument of QI-boosters.