|The stupid question is the question not asked|
I agree with the general idea of what you've put forward, but not all the details.
I think the "trigger" should be more along the lines of Reputation <= -N, rather than Downvotes >= N. I visit "Selected Best Nodes" every so often and see nodes with numbers like Rep: 185 (+200 -15): I wouldn't want those automatically hidden. I've noticed others have discussed this point and -10 has been mentioned a few times: that would seem to be a reasonable figure to me.
I'm not sure about displaying the vote count on the node. If I haven't voted on the node yet, would I see both the current votes (as I currently do after voting) and the radio buttons to allow voting (as I currently do before voting): it could be somewhat confusing; especially to someone fairly new to the Monastery. There's also the issue of implementing such a change and how much work that might entail (I've no idea on that). As an alternative, can I suggest simply adding a link to "Worst Nodes" as part of your posted message (i.e. "This node was taken out ..."): that stands a good chance of having a current, or at least a fairly recent, vote count; it would also highlight repeat offenders.
In reply to Re: Feature: Auto hide. Change: show node vote counts to all, not just logged in users.