Thanks. From the thread you suggested, this too covers some of the topics https://news.ycombinator.com/item?id=20023209

I know there have been at least a handful of similar threads over the past two years. But a lot has changed since then, except the main websites in discussion.

Later this week I may reconsider how to frame the question, while providing some positives and negatives of each of the major sites to help initiate a conversation. HN appears to have much more activity during the standard work week and I didn't consider that before posting.