I do appreciate this desire to have things logged and have everybody knowing exactly what everybody else is doing. Unfortunately, I don't think it's tenable in the long term.
Once the chapter is officially created and incorporated, there are two types of decisions that will typically be made:
1) Decisions concerning everbody which will be made at the AGM, typically by a vote (and a person's reasons for voting one way or another may very well be kept private). AGMs are going to have minutes which are typically made available to members, and don't need IRC logfiles 2) Decisions concerning the day-to-day business of the chapter, which are typically made by the board (or an executive subset of the board) without requiring input from the members of the chapter. Logs aren't helpful here, because decisions may be made internally by the board members (although an explanation might be requested by the community).
The only time IRC logs are going to be useful as a tool for tracking and understanding decisions is in this time right now before the initial board is elected, because they will be making most decisions (with possible input from the community) until the first AGM. Trying to mandate all sorts of solutions involving bots and wikis and IRC logs is just not worthwhile because they're usefulness is going to be very short lived.
--Andrew Whitworth