being kinda judgmental here Sleepy...
Pot isnt 'socially acceptable' to talk about, but drinking is? We haz an entire thread dedicated to "Drunk, post here". And pot-talk must be 'semi' acceptable since you mentioned your FB is FILLED (keyword: filled) with stuff about pot, and 4/20. And Facebook is the King Overlord of drunk talk, and drunk debauchery pics. Thats acceptable then?
I understand if youre getting at the legality of the subject matter, by posting on a public forum - but talking about it is one thing, telling a cop to his face that you just bought a bag, and showing it to him, is another... Talking about pot isnt illegal, and you shouldnt judge your friends by what they do in their own time. You'd be surprised what all of your non-pot 'nice' friends are doing behind closed doors. Trust me. Or just ask the pope, he knows what Im talking about..