"Is it correct now to write, 'If a writer writes, then they--'?"
"No. It should be 'If a writer writes, then he or she--'."
"That's awkward. And that's not the way we talk."
"True. But it's the way we write."
"What if I use the second person instead? Like, 'If you write, then you--'"
"That's okay. But writers using the second person because they aren't sure of the rules of the language--that's a problem."
"You know, the rules are changing more toward the way people talk. I'm not writing a college paper. It's a casual article for a newsletter."
"Then your work will be read by an editor. Don't give an editor any reason to put his or her hot little hands on it and start marking up your article. If you want your work published as you wrote it, use good grammar."