Re: Bitcoin has no practical use and could be damaging to the economy!
How can a deflationary model be bad for the economy? People are not getting poorer after every inflation increase every year, so they have more disposable income to spend on the economy. The people who are saying this have no clue or they have not lived in a country like Zimbabwe or Venezuela where hyperinflation nearly destroyed their country and their economy. 
A lot of the people are getting some advantage from a system that are based on inflation, so they want to stop Bitcoin with a deflationary model.
They think it's bad because when a certain currency deflates the amount of people that wants to spend will reduce since they expect the value to increase just like with Bitcoin. In general I don't see Bitcoin damaging the economy since it's given a lot of people ways to make money but nothing is perfect there will be losers on the other side including fiat. A lot of the people are getting some advantage from a system that are based on inflation, so they want to stop Bitcoin with a deflationary model.
One was able to pay hospitalization, the other have been able to buy for him a house and lot, others have been able to buy a car to get to his job early, and so many other things.. See how people even made bitcoin atms and for just a simple reasoning bitcoin becomes useless and damaging? I think this guy has to wake up...
What features of Bitcoin allowed those people to buy a house? Maybe blockchain? Fiat money are so centralized that people refuse to sell property in exchange for it?The answer is simple: some people just got lucky and became wealthier because they earned some BTC by doing some simple online stuff (it is mostly about India). Money gave then an opportunity to buy a house and not a bitcoin by itself.