I keep them if they help with clarity
Why remove them? Using them is one of the lessons one of my favorite people, Kevin J. Anderson, drilled into my little writing head. (Notice, folks, I said, favorite person, not favorite writer - sorry, Kevin, if you're lurking here somewhere.)
Passive-Aggressive insistence on the Oxford Comma: we are very alike.People have called me dense and challenging. People have also said I hang out in trees. (Yes, I know that's not what he said).
WBH is pretty dense, though. That's what I wanted and I hope that's what other people wanted. Best to chew thoroughly before swallowing.
As for errors, Chris is a particularly clean writer. Me not so much, so I'm sure I'm a pain to edit, what with my OverCapitalisation, Long sentences, and Passive-Aggressive insistence on the Oxford Comma (hey, Oxford is in England, right? So why not.)