Donald Trump's Twitter account nearly follows this rule, but not quite:
"4.2 million hard working Americans have already received a large Bonus and/or Pay Increase because of our recently Passed Tax Cut & Jobs Bill....and it will only get better! We are far ahead of schedule."
(Feb 11, 2018)
He missed "Schedule" but incorrectly capitalized "passed". Tsk.
Looks like capitalization as a general emphasis - if you just scan capitalized words:
Americans Bonus Pay Increase Passed Tax Cut Jobs Bill
Makes a good summary of the points they want to emphasize, that Americans get a bonus because the government is progressing on the Republican+blue-collar agenda.
Missing "Schedule" isn't a big deal. During that period, English speakers didn't capitalize every noun, just the ones deemed important. Evidently Trump doesn't consider "schedule" important.
"4.2 million hard working Americans have already received a large Bonus and/or Pay Increase because of our recently Passed Tax Cut & Jobs Bill....and it will only get better! We are far ahead of schedule." (Feb 11, 2018)
He missed "Schedule" but incorrectly capitalized "passed". Tsk.