I strongly dislike setting this to something other than false by default. Two reasons
Yeah, me as well. I added a ton of notices to methods that where just marked as deprecated but did not actually call wfDepracted yet so I could see warnings. Then people got mad and forced me to either revert or change this. Yay for someone else changing it back. Now I can remove setting this to false in my LocalSettings file and enjoy sanity by default.
I don't really think things should be marked as deprecated if they still have callers in the extension repo.