This came up in the workshop when a new member posted: Definitely needs an announcement so we know the post is OK in the workshop.
This used to be common knowledge back in the day; it was mentioned in the site rules. I guess it's not anymore, though it definitely should be.
I added it anew to the wording of the Forum Rules in the FAQ. Not sure when it would have been removed, but... fixed now. I'll put up a Notices banner to give the fact more awareness.