That is not very nice. Azircon has been posting about that for the last half a year, it lead to the changes in all three Splinterlands contest rules and now community is aware of issues with milking Splinterlands contests. I for one am no longer voting for accounts that extracted over 75% of their rewards thanks to the easy to see KE of 3+
Splinterlands curators also seem to have gotten better at voting in the first 24 hours. Yeah it is not perfect yet, but at least they are working on it.