I'm logged in on @ocd here and zoomed out to see where the posts we've upvoted start coming up.
I'm not sure what accounts you're referring to exactly other than say leo.voter/appreciator but I do wish there was more transparency there and that they had a bit stricter requirements for their votes which often seems to place posts on trending with few if not any comments which may not be a great look to outsiders.
You can also look at Dan, Dan alts, most part of Dan delegations and so on. He is doing good in projects and no one want to mess with him because of that and because his power due the stake and influence in others but I'm free and use to talk if I think something is not ok (of course I not always right and my opinions are my opinions), and in this case I think he could do much better where it concerned to curation. Of course is his stake and he should do what we want with his stake, like I do with mine. But he personally could do better in curation. There are a kind of circle voting over there and it's not necessary, all could benefit with better curation, even him.
In conclusion, we all could do better, it's just a question of taking the eyes for awhile from the mirror. For some the better they get the more benefits to all, for others, small ones, their improvement might not have to much impact to all but at the end everyone's efforts are better to all.