There is a "rules/guidelines" thread posted at the top of each section.
Here is the link for the General Chit-Chat Section
Rules of this section -- last updated on September 16, 2009
There are a few clear-cut no-nos for posts - religion, politics, vulgarity/swearing, crude sex, bashing, etc.
Many of us have had threads deleted - for one reason or another - I think most of us do not knowingly post something unsuitable - so do not feel that if you have a thread deleted or edited that you have committed a cardinal sin.
Sometimes the original post was "okay" - but then the additional comments made it go downhill.