Don't hit buttons on an assumption and get butthurt when it doesn't do what you thought. This is a beta, there is no point in writing tutorials and tooltips for everything since most of it could possibly change.
You could have asked what the declaim button did on the forums before doing it. While I know the wiki isn't official, it's pretty clear on what happens when you press the declaim button on the stake claim entry. There were plenty of ways of figuring out what would have happened before doing it. Shoot first and ask questions later just lost you your week's worth of work.