I don't think you have been banned for using 'dirty' words. You have the habit of making degrading personal attacks on posters here. You cant argue a point without insulting the person, sometimes you don't even argue the point but just go straight to the attack. This is the reason you have been banned.
Unfortunately the good points you have get lost and over-looked because you upset people.
Your recent posts are somewhat calmer but unfortunately no one cares because of your abusive posting history.
I suggest you come back as a new name, don't let on who you once 'were' and act like a gentleman.

You will get genuine interesting debate if you follow the rules - you can be as scathing as you like about someones views and ideas BUT NOT about them personally with regards to their race, religion, colour, creed, culture, gender, sexuality or age(might have missed a few here).
Does that make sense?

Peace.

I don't go to mythical places with strange men.
-- Douglas Adams, The Long Dark Tea-Time of the Soul.