I'm hoping there's a simple answer to this question, but I somewhat doubt it, so perhaps consider this as more of a complaint:
Why, after carrying out an instant run-off vote, is another vote carried out afterwards between the top two or so results? Is this not already satisfied by the instant runoff vote?
Since you have twice accused me of bias in two consecutive process threads I feel compelled to answer.
The CAP Process dictates that an IRV poll can only be won if one option has a simple majority after the first round, before any options are eliminated. The purpose of IRV in any other case is to cut down on options to make it easier to hold a bold vote, not to find an eventual winner. Multiple Bold Voting is used when there are three or fewer options remaining, as being the most accurate and least confusing voting method, but also being rather time-consuming.
The reason that we have had two options in the final poll, rather than three, for both of the polls of this current CAP4 is because in the final three, there was one definite rank outsider with the top two being within a few votes of one another, and hence it was decided to cut the top options to two on those occasions only.
You are more than welcome to look through the CAP Process Archive for the threads where the voting system is discussed. Please do not accuse us of any such behaviour again - I can understand your complaint but please do understand that the way you expressed it was not helpful, constructive, or kind.
You may want to read this.
EDIT: Ah, I thought it was a joke, but I wasn't sure. No hard feelings.