Bitcoin is broken, don't know why people still use it when there is a plenty of better alternative 
Name the coin of your choice, then imagine that this coin has bitcoin's user base and number of transaction per day, add unsolicited use of blockchain and aggressive spamming and I am sure that your coin will crumble very fast.
Bitcoin is growing fast, but we have still use the same initial parameters. We need SegWit + off-chain scaling.