No, but my kids aren't asking for money based upon wrong claims, whether they know or don't. However, as adults, especially when you are pitching an idea looking for funding, you are expected to be factually correct. Being factually wrong, and then claiming ignorance isn't going to help build confidence in investors. Caveat emptor applies alright, but really, we aren't in grade school to actually let ignorance be an excuse here, especially given they are soliciting funds.