Avoid wood shavings of any kind
That seems to be overly generalized. I can think of many applications for wood chips or wood shaving that would benefit me.
What's wrong with wood shavings? You don't want processed or treated lumber of course but mulched trees work wonders, and the worms love them too. I find it a great aggregate for my composts.
That's what I was thinking, too. I will use wood chips in my compost as a carbon source.
Although I have never chipped up treated lumber to use in my compost, from what I understand, the treated lumber used in the past 30 years is not toxic to plants or people. My lumber yard swears that you can use treated lumber for raised garden beds without any concerns.
OK, showing my 61 years of age here, but I can remember when I was young being told to always wear gloves when handling treated wood, wearing a mask when cutting treated wood, and never, ever burn treated wood because it had to be disposed of as hazardous waste. Would like to know if other people were taught the same things about treated wood back in day.