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Correct. I have seen posts that only have one comment over and over get voted by the original poster (their own comment) until their voting power is exausted.
I don't understand how this is allowed to exist.

@henry-gant so basically you can use your voting power how you want and nobody is controlling it?

Some things are frowned upon . . . like abusing the self voting power. I mean one vote for your post is acceptable. But, It used to be I've seen people upvote each time they comment. Some whales get up over a dollar a comment.