Is "ignore volume ownership" the default for non-system partitions? I realise it is the default for external drives but not sure about other partitions on a users system drive. I don't have separate partitions on my machine so I can't look for myself ;-)
I only have an NTFS partition next to my HFS+ partition, so I can't verify this. But all my external's have "ignore volume ownership" disabled and I'm pretty sure I didn't set those.

Why do you need to know this? It's hard to help without some background information.