One thing I've noticed that is impressing me is all of the unique votes. When comparing unique votes (UV)/votes(V), I'm finding most people on the list are above 25% and quite a few are above 50%. Maybe it's telling me something.
It's also interesting when looking at curation efficiency, even among the top 10 accounts, there doesn't seem to be an obvious trend. Some vote big and not that often others vote a lot and for smaller amounts.
Well you get a few points for the vote spread, but most of the score comes from text and comment related metrics.
As you allude to in another comment on this post, being verbose helps - there is not really any way to pull out meaningful commentary over excessive blah.
It would be difficult to differentiate quality and content. I guess if someone is clearly gaming it, action could be called for. However, this strategy is now out. Let's see where it takes things, lol.
I do check for samey comments and have silently removed 10+ accounts over the years.