Bitcoin as a currency is a scam. That is true beyond a doubt. Every promise made about Bitcoin as a currency has predictably, proven to be false (claims proven false include easy/cheap transactions, no traceability, no depreciation).

Which is why the Bitcoin industry now pushes it as an investment, which would require it to have diametrically opposed properties than as a currency.

The only question remaining is whether there is some genuine use for Bitcoin, but the original marketing of Bitcoin is indisputably false at this point.