Can start spreadsheet answer thread here.
Have people who want to put answers into the spreadsheet post there, and then once every couple days you update the answers.
A possible simple solution for your consideration.
You lack faith in the diligent question answer-ers
I say start the thread up at least as a temporary solution and if you find it is not working satisfactorily then we can continue to look for a solution.
You might also, if possible, allow more than one person the ability to update the questions, but not full public