Everyone double-posts a comment at times. I've done it. You've done it.

When you accidentally post a comment twice, you feel like an idiot.

You curse yourself. You belt your head against the monitor, you bite your tongue and you jab needles into your eyes.

But is it really your own fault? The software could handle for it. But it doesn't. Blame the software. The major commenting engines *should* handle for it. It's an easy feature to include. But they're so damn rich, fat, lazy and yes, butt-ugly, that they left it out on purpose just to make you feel like a newbie idiot once in a while.