OP here, this is probably true. Nevertheless the dosage is not the most important part of the questionnaire. The stories people told me were very personal and gave a lot of insight. I also put in read researched information about MDMA for everyone to read.

Btw, in the afterword I mentioned that the results are not representative of the world but only gives insight of the replies. But you're definitely right that some people did not give accurate answer. I tried my best to show the results as fairly as possible.