Because the people who know did their homework; they weren't bogged down in all of the other inane things in life of which a great many are caught up in; things that I have alluded to in other posts. People take MSM at their word because they'd rather just get a brief 5 of 10 minute review of the day and go back to their Facebook and the like. I'm sure that for those like yourself, it required some effort and energy on your part in going down those rabbit holes; holes which a great many have not the time nor the interest to do but that is what determines the difference between those, like yourself, and the sheer masses.