Exponential growth of property tax and of inflation
What does article is talking about is exponential growth.
2555% Inflation through November 2020
It isn't just a arithmetic doubling it is a compounding. So just as compound interest can multiply your savings, compound inflation can multiply the effects of inflation. As you can see from the cumulative Inflation chart since 1913 we have seen 2555% inflation.
Yes, that is right Two Thousand Five Hundred Fifty-Five percent inflation.