[Steely Tom]

The quotation mark problem occurs with left- and right-hand quotation marks (curly quotes), not with the normal type on most keyboards.

"Enclosed in straight quotations"
“enclosed in curly quotations.”

I think most - if not all - of the problem occurs when people cut and paste material from other websites. Quoted material you type in won't have the problem.

[John Valentine]

Quoted material you type in won't have the problem.

It certainly does for me. It’s driving me nuts.