Exactly, almost the rate does not matter, except for the fact that it keeps the selling pressure up as users cash out their rewards. This data you speak of it seems logical to me that we should not be letting them burn their votes without them mutually supporting each other, a la minnows unite and similar campaigns. Sure, I can see how the big accounts have resources to conceal their self-upvoting but this just confirms its illegitimacy, once it is discovered. It isn't that hard to do traffic analysis to discover where the money flows back via external cryptocurrencies either.
The mutual support of users is part of how the system grows more resilient. I just want to help the newbies avoid burning their votes not helping each other increase their visibility and that sense of comradeship that it produces, which is very positive for community building.