Bitcoin is not a valueless coin. It has a great value and demand. We aren't able to earn bitcoin by doing nothing. People are seeking to get it free but in reality, it is not possible. We have to work physically or mentally to earn it.
I am really agree with you because we can't earn Bitcoin without doing anything. The people who seek free bitcoin are fool and get trap of cheaters. Earning Bitcoin needs physical, mental and financial issues.
Sometime free means at least we do an effort to earn bitcoin. Because in fact, who trapped by cheaters or maybe scammer, is people who have money but not want to do anything to earn bitcoin as much as they want. That is why they usually look for investment sites to earn bitcoin without do anything.