4) Satoshi is great. He solved one important technical problem. But, trust me, he doesn't know how money works. Why should we encourage hoarding? Why should we punish those who is spending? We, as bitcoiners, would someday come to a conclusion that let the total number of bitcoins increases 3% every year and make the mining a sustainable career.
Because BTC is opposite to FIAT money and that's exactly what FIAT is NOT doing - it's punishing hoarding and rewarding spending. Satoshi wanted something different.
FIAT means inflation. And inflation is not that bad. Inflation is compensated by interest. Have you ever thought where the interest come from? What we want is not deflation, what we want is freedom.