Greasemonkey Script for Nikonians' Nag Text

Just a short one: I've been annoyed by the nag text at the Nikonians forum when posting there. They ask you to upgrade your membership in there, but there is no need to do so, because posting is allowed to everybody. (If not the community might be a bit smaller there.)
So I wrote just these few lines to make it disappear. If you think it's useless it's okay, I wrote it for me.

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