Remember also that any 'voting system' is only as reliable as those voting.
To do it right, it will take a level of effort and complexity that the board admins/moderators are not willing to deal with.
Most user moderation systems have some method of allocating mod points to users based on their seniority or peer ranking. Not done well, this can be abused by those "in power" at the expense of newcomers. It takes careful attention and some effort to keep the system tuned properly.
I'll rate your comment: +1 Insightful