Refining channel rules/descriptions

i think a lot or the channels have confusing rules/ descriptions, especially for the new people who dont understand the culture. in general, i think rules should focus more on what people should post rather than what they cant. maybe we could include the channel descriptions with the rules when someone is posting something and hits the rules button?

channels that i think really need better and more specific rules: /trash, /mylife, /animation, /3dimensions (this one specifically has been a huge problem, i’ve noticed), /madebyhand, /amv, and /vfx

/horror and /foundfootage seem fine but i think they could use a little work as well