There should be something like a simple captcha to upvote, so that bots could not vote.
From what I understand, reputation is mostly affected by SP. People with high SP can ruin reputation of people with less SP. For example you with your 72 reputation can't downvote a post that has $100 to 0 because you don't have enough SP. Correct me if I'm wrong.
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Captcha would work if steem blockchain was centralized... it isn't. There are many different ways to access it beyond steemit, and growing. Most bots don't even actually go through steemit, though they can. Captchas work great on centralized systems where the only way to access them is through one web page. Yet centralization makes it vulnerable to take down.
I'm sure there is some way, we just need to be creative.
Code is easy to circumvent in MA NY cases, and can introduce new issues in others. A lot of our solutions can be done by the community by people, as opposed to trying to force it with code.
Correct. At 100% my power is worth somewhere between $3 and $4 right now so that is the most I could reduce a post.
So that means that the current system is. The higher the SP the more power you have to downvote and ruin reputations.
I could harm reputations if I down voted. I generally find almost no reason worth down voting.
You can't harm reputations if you downvote a $100 post. You can only harm reputations of people with less SP then you.
I know.
You wrote "You can only lose reputation when someone higher reputation than you down votes you." so according to what I wrote above, that's not the fact.
Hmmm... I was pretty sure I could still impact people with more SP than me if my reputation was higher.
Though I haven't put it to the test, as I don't tend to down vote people.