There are a few sections of the devforum rules that are outdated (Official Rules of the Roblox Developer Forum)
The specific outdated rule description is in Feature request rule number 4
“Posts consisting of memes, puns and meme-related GIFs are not appropriate here. They may only be posted in Lounge categories (accessible to Members).”
The recent update renamed the “Member” role to “Regular” so this should be updated accordingly.
Another (potential) issue exist here - About the Forum Feedback category
“All (New) Members of the forum can create topics in this category and reply to topics.”
This seems to refer to the old “New Member” rank, now “Member”. This could easily cause confusion in the community so the “(New)” should be removed.