Most recently I have been trying to highlight the fact that the site has been not keeping quality and multiple submissions cause discussions to scatter.
I tried to open a discussion on this topic a while ago https://news.ycombinator.com/item?id=10225569
The problem of multiple submissions is not difficult to fix. Reposts are ok to re-kindle the discussions however it is a dysfunction when multiple submissions are happening within a span of few minutes.
I do not wish to earn karma by taking credit away from anyone's post and I take keen interests in quality discussions.