PermaBulls are always saying you MUST use Log scale for #Crypto.

I respectfully disagree. I believe it is just a tool to justify sky high price predictions.
What Log Scale Actually Does -
Linear scale means, equal vertical distance = equal price change
Whereas Log scale means, equal vertical distance = equal % change
In assets that compound (#stocks, #gold), log scale is usually preferred for long-term charts because markets move in percentages, not #dollars.
However, early Crypto Was Price Discovery, Not Growth
In early #Bitcoin (2010–2013 especially)