N v2.0 - What happens to flagged maps and runs?

[SGT_CELERY]

I played a level that turned out to be impossible, but somehow I managed to complete it. I replayed the level a couple of times but couldn't beat it again.

I just made my account and don't want a big black mark because of a bug :(

[Fujita Seiko]

I wonder what flag does too! I firt did flag a demo if I loved it. Then someone tells me It mind meens a bad ting :S. So I stopt doing that.