If you are very active in debating and understand how and when Rating is calculated, you'd know that you gain more and lose less by consistently having your 'sure wins' happen as late as possible and risky outcomes happen as early as possible. I know that my Rating here is average, but that's because of both having people out to vote against me at any given opportunity as well as frequent phases of laziness and abandoning debates in bursts to deal with shit IRL.
If you actually analyse me when I try, I understand 'mass-debating' (funny name, I know) more than any other user here.
The reason you want sure wins to happen as late as possible and risky outcomes to come as fast as possible is because against good opponents, you want to have the outcome hit you before the outcomes with weakers opponents occur (because you gain more and lose less while your Rating has taken hits but gain less and lose more when your Rating is on a 'high').
Of course, if you truly look deeper I am wrong in the times where everyone is preying on the same 'easy win' victim. In these times, you want to all compete to finish the debates ASAP as the Rating of the opponent is decaying fast and that outweighs any stalling benefit.