Yeah, I've found that the whales typically "swim I the same circles", and most of my comments wouldn't get a reply comment or upvote. I wrote it off as part of "the experiment" where whales stopped voting. We joined about the same time! :)
It seems like whale voting has changed a little, with more whales voting in small amounts.
Although with the jump in Steem price, I bet they pulled back again on sharing their votes..