Ooh tough question! My opinion is that we are all free to act how we want.. so long as we dont cause harm to others or indeed the ecosystem. If i write a great post then ive added the most important thing, good content, and for sure am worthy of my own tiny vote, or large one if im one of the few believers who have invested their money into steem.
Also, since were all here for different reasons we can decide what we want to ndo with our vp. I also think that whales should keep a significant amount of vp or delegate it to ensure manual curation still happens... and for sure exclusive self voting by anyone is a real sad existence on steemit!
For sure, I also do not think there is anything wrong with any account self-voting to a minimal degree. It is when we see whales with 100,000+ VP self-voting on 5+ posts a day that really hurts the system.