Not sure if it's a good idea to post that you smoke weed. The governments of the world might be reading this thread, and it might be possible to link your forum profile to your real-world identity. I'd be careful... 
If you are that conscious use TOR mate and share whatever you want to. although I guess you were trying to be sarcastic but if you are not than I'll say that there is a lots of other tainted activities happening around that the authorities should be interested in compared to stalking some weed smoker .