Yes I admit the people on the free worlds are mostly mean. I created a new account once and within the first 30 minutes of playing i was killed a "fing biach noob". Although the people on the free worlds are not very nice if you become a member you will find that players who pay for the game are much nicer than players play on free to play.
If you have any other questions please consult the runescaoe knowledge bease before coming here, the runescape knowledge base can be found at
http://www.runescape.com/kbase