The Core

Highly recommended reading: Writing with Precision: How to Write So That You Cannot Possibly Be Misunderstood by Jefferson D. Bates

It's an oldie but goodie. Bates used to write for NASA.

Some people take umbrage at the suggestion to write for a middle-school reading level, because they equate "using simpler language" with "dumbing down". Those are not synonymous!

Years ago I studied a number of Winston Churchill's war-time speeches and among other things I found that they usually scored around the fifth to seventh grade level according to Rudolph Flesch's reading ease test. Churchill was writing speeches long before Flesch developed his analyses, but his instincts as an orator took him to the same place.

PS... it's harder than it might sound though. I find my tendency is long, convoluted sentences. Simplifying it takes serious effort.

If I recall, it was direct response copywriter Ted Nicholas who said to never go beyond the 8th grade level. He found that sales letters written to a max of 8th grade had better sales even when the mailing was going out exclusively to lawyers or groups with PhDs.

This surprises me though:

On Medium those articles using sentence case performed better than title case, averaging 20% more recommends.

Yes, I use the Hemingway App. Not as a standard editor, but from time to time.

It's a great exercise to write "Hemingway Compliant" text (which, by the way, Ernest Hemingway does not do).

It can be constraining, but I also notice that my writing can have a lot more energy.

...but too much will make it indigestible.

Everything Nick Cave wrote.   

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Another consideration is paragraph length.

The standard is three to four sentences per paragraph.

But that's for paper.

Less for desktop.

Ridiculously out of step for mobile.

 I don't have proof or citations that this is in any algorithm or study. It's just obvious. Not seemingly obvious. Obvious.

Your long and convoluted sentence did not go unnoticed.