Is it just me? NO, I've seen it a lot on various user-entry sites.
EVen though my spell checker is set to auto-correct TWo INital CApitals it doesn't; all it does is underline the word with a squiggly line. DRives me bonkers.
I think that the response time of the left shift button is slower than my high-speed hunt-and-peck typing. I hit the next letter before the 'shift up' registers.
Can I put in a stronger spring on that button?
PS My GF touch-types rapidly and it does not happen to her.
PPS Maybe is is just PEBKAC. I am too old to re-train.