The share ideas form basically wants you to click on the big green button at the top, which reloads the page and dumps all the text you wrote. That button shouldn't be there, why would I need a link to the page I'm already on? The save button should be larger, highlighted (not gray on gray) and physically further from the cancel link. Also, on a 24' monitor @ 1920x1080 and normal (100%) page zoom in IE, the "save" button is not visible, you need to scroll to it if the "we have found similar ideas" box is up. So its even more likely that you'll hit the visible green button which loses your text than the hidden small gray one.
Som Chakravarty
Hi Andrew,
We understand your problem and will see what/when we can do about it.
/Som