I don't usually get asked too, but anyways, I don't think we should.
For one, it may be annoying, but it's not that hard to say something along the lines that you're not going to post on their application now that they've asked,
Secondly, it helps differentiate the people who aren't being a bit immature about it, asking everyone to post in their apps, when compared to those mature players who have a nice application and don't ask for an input.
Finally, it's not really a requirement rather then common sense, and I personally want to know if said player has common sense and if they're mature.