Well I grant you that you're humble enough to acknowledge the possibility of the former; that's something I have been accused of from time to time so I'd be the last to cast stones.As for the latter, I wouldn't argue the value of the debate, I just think the debate should be focused on evaluating the product/manufacturer rather than continuing to cast the OP as a hard-seller (well intentioned or not).
This is a very good point, anyone who ever took a statistics class learned that the larger the sample size the more reliable the results; conversely, the smaller the sample the more susceptible the results are to the myriad factors you mentioned. So I thank Leah for her efforts to document her experience, as we can at least infer that in the short term this supplement (as with almost anything) likely has very little effect. But you're right, anything beyond that is pure conjecture.