Currently, if a Meta post hits -8 score, it is hidden from the home page of Meta Arqade. In my opinion, this can stifle a discussion, as on Meta sites, votes are generally taken to represent either agreement or disagreement of a topic. So, if 8 early users see it and leave a downvote, others that view Meta later might miss it.
Another side effect (although probably a lesser one) is any post with < -8 score can effectively be edited by anyone with over 2,000 reputation without oversight or review, as the editor has enough rep to make immediate edits (i.e. not going through the "suggested edit" review), and the post will not be bumped to the home page. As a demonstration, I edited this post at the same time I posted this question. You will note that (as of writing) it does not appear on the Meta homepage.
What can be done
A change was recently made to allow sites to choose to allow posts at -8 on the Meta homepage. The change is opt-in, so I ask, do we want to opt in?
NB: it'll be ironic if this ends up with -8 votes and falls off the Meta Home page.