Posting things like ToDo lists in the article itself or adding instruction creep such as WikiProject tags hurts more than helps and makes our content less usable to third parties.
The effort needed by a content reuser to remove a WikiProject tag is negligible.
We have talk pages, let's use them.
We do. But I read a lot more main pages than talk pages so I'm much more likely to pay attention to a tag on an article than on its talk page.
Regards, Haukur