That is a great opinion and the beauty of decentralized blockchain is that you post your opinion without anyone stopping you.

Down voting is meant for plagiarism, and other nefarious activities that are meant to harm others or the network in general, but to DOWNVOTE using YOUR OPINION as the metric by which you decide to act is like someone attempting to keep you from posting your opinion here on the blockchain.
I using SBI to help others. I upvote myself to help those that also up vote me, at least that is my logic.
Have a good one.