I made a mistake. I was logged with utopian-io without realising it and upvoted this post 100%: https://steemit.com/utopian-io/@t3ran13/development-and-debug-of-php-graphene-node-client-debugger-sub-project.
I have just made a transfer from my own wallet to utopian-io of $390 for the wasted voting power.
I have also lowered the vote for the post to 11% voting power.
Please @grumpycat remove your downvote there.
UPDATE
Thanks @grumpycat for having removed the downvote.