:::::::Not all possible contributions are valid ones that need to be left in the article pending a consensus to remove them. BLP violations, for example, have to be taken out of the article immediately, as do many other kinds of "contributions" that people might consider "undoing" their work. Rather, since you're the one trying to create a new type of Wikipedia "contribution" that's different from what's done in any other article, you're the one who needs to gain a consensus that the work in question is a valuable and useful thing for the article to contain. I'm not the one who needs a consensus to take it out; you're the one who needs a consensus to put it in.