This is my guide for stuff you should probably already be doing. I'm not perfect, I will acknowledge that I have done some of these in the past and unfortunately will probably do some of these in the future.

1. Be Respectful. This is the most important thing on the list. Remember that everyone here is a human being, and they deserve to be treated well. Before you post something, put yourself in their shoes and if you wouldn't like someone to say that to you, just don't say it.

2. Follow the site rules. This one's a bit obvious, but uh just don't say things you know the mods are gonna take down. just don't lol

3. Don't discriminate. point count is pretty irrelevant. What it can tell you is a rough approximation of a user's skill/popularity. What it can't tell you is whether or not this person matters any less than you do (they don't).
4.Other people believe stuff too. Don't be disrespectful towards people's beliefs or religion. That giant cross I posted on Easter a while back didn't take much backlash, which is probably why it didn't get taken down. The “furry update“ post was removed due to controversy. Just because you don't like something does not mean that your opinion matters so much that you can tear somebody down. It goes back to the whole be respectful thing.

If everybody followed these guidelines, the site would be a better place.
Unfortunately they're not going to.