The good old questions! How to use power responsibly? As you state, most votes for extractors have gone down. That's pretty awesome. But as AZ states, content of SPL posts aren't that high quality to justify big votes. Not much fun to read and curate (or not), either. So, I understand the curators not being too big into it.

Also, I would only go for higher efficiency knowing that the SPL account won't sell, but only accumulate. Selling Hive for the benefit of SPL is not a good idea in my opinion, as it devalues the community for the benefit of one part.

I still don't get efficiency by the ways... Why do I sometimes have above 100%?