I was just reading Hemmingway today.

His writing was good. It was not fancy. His sentences were short. I like the short sentences. But then his sentences could also be long and go on for a time without a comma until one came, and then there would be another, and then it would end. It was a strong way to write. It was a strong way to say something.

In everyone's writing there is a voice. IMHO it's worth trying to use proper grammar, but writing is expression, and sometimes being too conscious of grammar quiets that voice, which is a bad thing.

I appreciate Hemmingway because although he usually used proper grammar, it didn't get in his way. He just put periods and commas where they ought to be, and that was that. I dislike when an effort to use proper grammar gets me bogged down in an unweildy sentence.

One thing I appreciate about online discussion is that it gives me an opportunity to exercise my writing. But I don't really care if people use proper grammar or not. Usually their ideas come through, and I can always ask for clarification.