An open letter to a whole bunch of people talking about OA as though they know something about it:
If you use the phrase
The gold (author pays) open-access model
you should just stop right there and maybe actually learn something about OA.
A higher percentage of subscription-based journals have article processing charges than do gold OA journals, at least the last time anybody who cared about facts checked.
But if your intention is to scare people away from gold OA and OA in general, I guess facts don’t much matter.