I agree, and sometime I can forgive, cos I know someone tried, a typo would be; You'r, You'e or Youre
cos they missed one keypress. But surely one can't miss two in succession?
That's just sloppy and/or bad grammar.
I can kinda understand my wifes sister (extrememely dislexic) especially when it comes to
There, Their and They're...
And there's at least a context, is it hERE or thERE? Then you wanna use There.
Are you saying They ARE something? Then you wanna use the shorthand They're.
And if none of the above then use the one that ends in IR.
There's a set of rules you can teach.
But it's common knowledge that both You're and They're are abbreviations of they/you ARE. Surely when there's only TWO "yours" to worry about it's not rocket science to work out which is which.
With there, their and they're, there are three, the only reason there would be a third "your" is if we included Yore, but no-one under thirty (unless they a fantasy writer) tries to use "Days of Yore" in the modern lexicon.