The point that many are seeming to make here that I simply cannot give any kind of credence to is that one must have firsthand experience with using a product on one's own child for it to be a good product.
I've seen posts from many people that talk about how mom or grandma or Aunt Sue got excited about the new cloth diaper options and started making me diapers and now she wants to sell them... If she's got a good product, I can't imagine refusing to use it because she doesn't have to change the diapers or do the laundry herself.
Also, there's not a single WAHM out there making diapers who will be able to continue indefinitely trying new fabrics and innovations on her OWN children. If she continues to make diapers once her children no longer wear them, and if she plans to continue making improvements to her design or trying new fabrics, then there will come a point where she can no longer say with honesty, "Yes, I've used this exact product on my child."
Honestly, I think this is one time where diaper makers really ARE being held to a different standard than any other business would be held to. I don't contact Old Navy to make sure their clothing designers have children, I didn't contact the manufacturer of my washing machine to make sure their designers all have children, etc.
I feel it would be incredibly rude to start asking personal questions to a diaper maker. Just because she has a product available doesn't mean I have the right to ask her how many children she has, how long she's been using cloth diapers, or any other question of that nature. Those things have nothing to do with the fit or quality of her product, and it's only my business if she chooses to post that information on her site.