I stopped someone from proving something for a long time. To do this, I have a page in social networks, where I can see my progress and how I achieved it all. If interested, then contact. I do not spend time arguing.
Yes it is very hard to please everyone especially with regards to risking there money. For me i don't convince people i let then see my achievements and from there it is there choice to believe and be part of the growing world of bitcoin.