This thing explains that "visibility" thing. People who proxy their votes only care about curation rewards.
https://steemit.com/steem/@steemitblog/latest-curation-reward-solution
"When people vote early, the curation reward is given to the author. There is very little incentive to vote instantly after a post is made unless you really want to donate your curation reward to the author."
Or they care to give some value to projects like RWH, Curie, etc. At the same time growing the community and getting rewarded for that, I don't see why that is a problem.