I understand your concern with this product and it is always best to be cautious. However, I do have issues with L-DOPA and Mucuna being used interchangeably. If you look up research on L-DOPA, it is going to be referring to levodopa 99% of the time which is used in the treatment of Parkinson's disease and causes horrible side effects like dyskinesias.
However Mucuna, while it does seem to facilitate L-DOPA properties, does show promise as a Parkinson's treatment without the side effects of straight L-DOPA:
http://www.ncbi.nlm.nih.gov/pubmed/20570206
Doctors have been using L-DOPA for over 50 years, so we know quite well what it does. Mucuna has so far been shown to be safe, but long term studies will need to be down as time goes on.
I do applaud you though for not believing everything that is said on here and encouraging other to do their research as well. And as a final side note, I have been taking IGF-2 for about a month now. It's hard to tell to what extent it has been working since I am taking it along with several other supplements, but it does seem like a solid product.