Philipp cast a cast "2x-power" close vote on a recent controversial question on Trump's tax returns, meaning there were already 3 such votes. This was a minor exercise of mod extra powers. I'm not at all suggesting that question would not have been closed otherwise as the closing votes rolled in fast, and to a lesser extent so have the reopen ones... (3 as of right now.)
Frankly that question unfortunately is probably going to end up on what I call the P.SE close-reopen roller coaster. It's not the only such question I've seen recently. Another one on white supremacy was closed-reopened-closed not long ago.
So, what guidelines (if any) should we adopt to avoid this kind of roller coaster?
I can see that a view could be to do nothing as the roller coaster is just an extended, multi-round close-voting system, e.g. one could read the latter example as a 10-5 vote-to-close.
On the other hand, it also seems to me that questions with a lot of (expressed or unexpressed) assumptions are more likely to end up like that... although some argue there's nothing wrong with opening one's question with counter-arguments. I would argue there is some tension between providing context for one's question and pre-refuting answers. I'm not sure what (in any) general advice can be given in that regard though. Does it just come down to "I know it when I see it" applied to loaded or slanted questions?
Addendum: there's also a delete-undelete roller coaster on top of that. The first question I mentioned was deleted with 3 non-OP votes, but there are two undelete votes already cast on it.