I don't see anything wrong with a self upvote, even when it's worth so much....but it should account for a small percentage of total upvote percentage given....how much is obviously open ended but I think 20% to reward to yourself is pretty excessive already. I would try to keep it below 15%, that seems like a fair number to me. 50% or above is pretty ridiculous.
Thank you so much for this, it allows us to get a much clearer understanding of the situation, though I imagine not the whole picture as many people have multiple accounts.
EDIT: really surprised at how many people are giving you a hard time for this....those with more power should also be held more accountable and subject to more transparency, no?
I absolutely agree with you. It's also understandable to get so much hate when you call people out on their selfish behavior. We all get defensive when others say you're fat or you need to stop smoking or drinking or whatever.