The main difference is that a self-DQ'd image is not displayed at the end of the challenge results for viewing and discussion; as far as the membership goes it disappears from the site.
There's no real difference in penalties or how the DQ's count towards them.
So, even if you self-DQ yourself, you still have to abide by the DQ suspension rules (if applicable), yes?
That's correct. If he had a second DQ within 25 entries, his challenge submission privileges most likely would have been suspended for a week, just like anyone else.
The main difference is that a self-DQ'd image is not displayed at the end of the challenge results for viewing and discussion; as far as the membership goes it disappears from the site.
There's no real difference in penalties or how the DQ's count towards them.
Ah, I see. So, the image at the beginning of this thread was NOT self-DQ'ed, then. Otherwise, it wouldn't show up on the list of DQ'ed entries. Which leads me back to my original observation--why the official "unprofessional" comment on why it was DQ'ed.