Lotta this kinda stuff can often be when the person is ESL (English As A Second Language). Had to help my first wife, way back in the day, with her papers in school, so you get intimately familiar with the kinds of errors they do, and when you speak that other language, you quickly pickup on why they'd mess up and write it the way they did. Since like the syntax rules in their native tongue, or the pronunciation of vowels in their language is what guides their brain when it comes to guessing how to spell X or Y.Seems to be largely a Facebook thang, but people who use the words 'sale' & 'sell' interchangeably. "Good luck with your sell" "Hope you can sale it"
I wish all these people slow, excruciating deaths.
I bet they're the same people that can't put their shopping carts back in the stalls.