Over twenty years ago I was a governor at a top Hampshire secondary school. I confronted the head english teacher as to why they no longer taught english grammar and she replied "There is no evidence that teaching english grammar leads to them writing better english". I think it's because the teachers don't know the difference, myself.
Having said that, I would not want anybody to feel that they would be criticised, ridiculed, corrected for anything that they might contribute to these message boards. Let he who is without sin.....