I think Wikipedia is mostly good contentwise. Of course there are two extremes where there are problems: disputed topics (especially contemporary political topics) and niche topics receiving little to no attention. I think for both an improvment can be made by improving the view on the editing history. Showing what kind of editors (new accounts or ong term members? Editing only few articles or across the board? etc.)…
Wikipedia politics is insane[1], and this power hunger can lead to objectively incorrect information being defended and sustained.