I'm in no position to speak on behalf of the website, but I found some links that might help.
http://boards.cannabis.com/cannabis-...ard-rules.html
(specifically Stinky's post #2) It talks about how talk of any substance, including alcohol, is now against site rules. Some old threads are still around, because they were created prior to the new rules. Other new posts probably have just not been reported or cleaned up yet.
Here's a good excerpt from a thread regarding the interaction between a certain pharmaceutical med and cannabis too.
Quote Originally Posted by FakeBoobsRule
It would have been better to start your own thread instead of digging up an old thread because when this thread was started, talk of other drugs was allowed. Now talk of other drugs is only allowed in certain cases, such as when you have a legal prescription for a pain killer and you want to know how it will be affected by marijuana.

I'm moving this thread to medical and keeping an eye out on it. Talk of use of pain killers for recreation will result in infractions and closure of this thread. Thanks.
Hope that helps! Oh, it is also a good thing to note that it is also against site rules to RESPOND to thread that violates the rules. Even if your reply states that the thread violates the rules, you are, in fact, in violation of the rules too. It's best to just click the report button if you see anything in inappropriate.
Stay and Keep :jointsmile:

Edit: Every freaking time... hahaha ^^^^ :jointsmile: We must have the same taste in questions to answer.