I think it is harsh to call them scammers they are simply dumb and do not understand how revolutionary Bitcoin is that is their problem and not ours.
I a was referring to those scammers who try to influence people that bitcoin is bubble and prices can bust anytime soon and they will loose money not to ordinary or common people who don't understand the importance of bitcoin in today's world.
The other part is that bitcoin is not only about making money with investment but also financial freedom and idea to replace money itself in the long run.
A nice advice for all those who want to invest in bitcoin that you won't get rich overnight as no one has ever become in most cases but you need to think about safeguarding your future like you take insurance policies and plans for your kids and old age.So it is better not to regret at that time making same false and lame excuses.Be part of it now.