As a new member, I really appreciate this forum's openness. Not only is it helpful in supplying me with the information I need on how to run a safe and productive cycle, it also makes me feel a lot more comfortable with/trusting of the sources. Sites like AB make me feel that, because I am a new member, I'm much less important/my opinion doesn't matter - which I could easily see leading to "oh, that source scammed you? Whatever newbie we don't care."
On Meso, I'm confident that if I never received what I paid for, or if I posted bloods showing that what I received was junk, the source's business would suffer. In other words, as far as I can tell, the sources here are held accountable for the manner in which they do business, not just with the "insider group" but with everyone.