Hi G.
Permies really doesn't have a list of rules, we only have 1 rule which everyone agrees to when creating an account:
be nice. Permies does have publishing standards and guidelines.
I looked at your post in question, and it appears that you want to talk about pressure treated lumber. Pressure treated lumber uses toxic chemicals to retard decay, and here at Permies we try to find and encourage ecological ways to build and consider alternatives to a lot of commercially available building materials. It's not to say we don't allow discussion about chemicals, we do and those discussions are restricted to a forum called Toxic Gick found in the Cider Press. A minimum number of apples is needed to be able to post in the cider press forums, and we have this in place to help keep internet trolls from creating an account just to cause problems and spread misinformation, half-truths and downright lies, detracting from helpful and productive discussions. They still show up, and we promptly remove their material - no big deal.
I see you have already earned two apples in 18 posts and are well on your way to earning
enough to be able to post in the cider press. If you go to the cider press forum toxic tick found here:
https://permies.com/f/147/Toxic-Gick you'll see a little white bar across the top of the forum where it says that 8 apples are needed to post there.
Here are a few more links to helpful threads about permies:
https://permies.com/t/31128/category-Cider-Press - all about the cider press
https://permies.com/t/17422/permies-publishing-standards - Permies.com publishing standards
https://permies.com/wiki/34193/permies-works-links-threads#267492 - The super list of all the threads related to Permies and how things work here.
I hope this helps. If you have any more questions, please feel free to reply here and myself or one of Permies staff will be happy to try and help.