Lemmy is far better than Reddit regarding the use of downvotes, but many people still use it as an emotional disagreement button rather than something used to hide useless/irrelevant content. I only downvote when somebody says something completely fucked or starts trolling.
I don't think upvoting funny comments is necessarily wrong, but there is a lack of meaningful engagement a lot of the time.
They are self-aware, willing to change and learn, and have a rational, logical view of things. It's rare to meet people like that, but they are by far the best people. Someone's philosophy on life is probably the best descriptor of a person.