Hair lair there. This is a tutorial (or article, rather) on how to be a good user on Planet Minecraft, a creative community fansite. We've all made mistakes, and we can learn from them. Some of these are mistakes that I had to learn the hard way, others are just common knowledge. Let's get started:

1. Be sure to follow the rules and guidelines of PMC (located here). I myself have gotten 1 warning for disobeying the rules, so be sure to read the rules in their entirety.
   
2. If somebody is harassing or bullying you, don't even try to retaliate. Act in a civil manner and report the user immediately.
   
3. If you are banned (or in my case, given a warning), don't make the same mistake I did and create a new account. That just brings more trouble.
   
4. Use constructive criticism, not destructive criticism. For instance, if someone makes an animation and asks what you think, don't reply "OMG UR ANIMATION SUCKS!". Be more civil: "Your animation can be done better, and here's how...".
   
5. Only submit a resource pack (or texture pack) once you have at least 50 textures done, and put some effort into said textures. Do not submit 1x1 or X-ray texture packs.
   
6. If your skin looks plain (1x1 textures) and can be recreated in 10 minutes or less, it's not a good enough skin for Planet Minecraft. Put some effort in the skin, like shading for example.
   
7. PMC recommends that skins should be created using MCSkin3D, but really any skin creator can be used.
   
8. If you are looking to post a link in chat, forums, or other areas of the site, consider using the link abridger for PMC links (internal), TinyURL (for users below level 20), and Adfly (for users level 20 and above).
   
9. Use the bad things people say about your project or blog to motivate you to make it better. For example, if you create a server and somebody complains about the passwords to join the server, then maybe that should be taken into consideration.
   
10. If you want to create a mod for Minecraft, do it from scratch using Eclipse and other tools. I would not recommend using [url=(Ad link removed)]McModGen
11. [/url] or another mod generator to create the mod.

FAQs

The site crashed. What do I do now?

I'd just wait it out. The site resumes after about a minute or so.

What's this CloudFlare site that pops up when PMC crashes?

I assume that's one of the resources the team uses to host the site, along with phpBB or something else thereof.

Do I need to have programming skills of that thingymabob language used a lot on PMC?

That "thingymabob language" is called BBCode. It is most often used for forums, but this happens to be one of PMC's primary languages. While there are visual editors for blog posts and forums, I'd say at least study the basics.