On STEEM:

For example, the inflation rate is roughly 8.5% now.

On USD:

Consider the fact that the United States Federal Reserve has a mandate to reach 2% inflation.

You have mixed economical inflation with money supply. Notice, that M2 money supply growth between Jan '18 and Jan '19 in US is about 4.5%, while FED price inflation index for 2018 was at around 2.2%.

or 20% over a decade.

Wrong! USD M2 money is up by ~100% over the past decade!

In crypto inflation is usually referred to coin supply growth, while economists use this word for quite something else!

As a writer with high influence and large number of followers, it would be good to rectify this mistake.