I’m just thinking out loud here, I think it’d be fine if you wanted to do that but like PW said handing out a bunch of pamphlets for a marijuana cultivation site is a great way to be followed or listed as suspect or POI.(Possibly) .. the only reason I see them not allowing it is because this forum teaches people how to grow their own medicine instead of buying it from the dispensary. Those other pamphlets are most likely local businesses that do not interfere with their revenue stream. I see it from both angles, if everyone was growing their own and had more knowledge about what their consuming that’d be great... on the other hand you have a dispensary owner that sees that pamphlet as a way for people to stop giving them their money. You can phrase it however you like but any good business owner would research the website and see what their promoting and most likely shut it down. You’d probably have better luck at a library or somethingJust about every dispensary I go to hasFliers, Business Cars, Pamplets, etc. sitting on the tables in the waiting room. They don't seem to mind at all. Totally Legal means more business for them too.
EDIT: When I proof read this, it may have sounded like I am not for the promotion of this website, I am 100%. I was just thinking thinking aloud why a dispensary wouldn’t let that type of pamphlet in their shop.. (I think dispensaries know their product is garbage and would fear losing their sales once people realize how easy it is to grow their own great bud) In all reality the best place to put those pamphlets would be all the local head-shops, smoke shops, etc. they would be on board for sure.