I’m quite flexible with what is isn’t allowed, but there are limits for quality/consistency reasons. I felt Digiqrow style was fine, so I accepted the image. Doesn’t mean that every similar image would be fine too.
If you wanna draw something like that, all you have to do is ask and you’ll be given fair consideration. Almost every rule has some degree of flexibility. It’s not in my interest (or anyone’s interest, really) to exclude someone because their preferred style deviates from the standard, so I’m always happy to work with people to ensure as many are included as possible.
This really isn’t any different than flying characters - anyone wanting to draw a character flying in the air has to get an ok from me first. Anyone who drew a flying oc without getting an ok first had their submission pushed down into the main group.