I thought there would be several responses to this by now! I had a long one written out last night, but decided not to post it because I am not a judge. I will say this though-
I am out in the sun a lot, and when I look at my T-shirts comparing the inside color to the outside color, the outside is always dingy and faded. My navy blues get a silver sheen, and my blacks tend to gradually turn towards grey. I think daylilies can be the same way. Too much shade and they can be pale or murky. Too much sun can cause some to bleach out quite a bit making them dull and faded.
I think your description for streaks refers to those that are not supposed to have them. Damage from thrips or a fault from a crack can cause those. Just a small light spot from a drop of water or even pollen will be points off. The darker colors are notoriously bad for white spots or streaks.
A lot of broken colors will often have a solid color bloom that is not streaked. Those are part of the plant, but not the typical form it was registered for, so the solid blooms would be "off type". Flowers of say Pink Stripes might have very pale stripes that are almost undetectable if they are grown in the wrong places. That would be points off. With broken colors, I think the lack of streaks or color spots would be points off. The same for patterns. When two people are showing Undefinable, the one with fewer streaks or spots will get the lesser score.
A good many toothy blooms have teeth based on temperatures. When you are showing those, they need to show the teeth or that is considered off type. A poly bloom of something that is not supposed to be poly is off type.
I have seen where six people were showing say Neon Flamingo. Some of the blooms are the deep pink they are supposed to be, but others are quite noticeably pale. I have seen photos of say Sharyn Lianne where it is a totally different shade depending on temperatures. While those deeper shades might be very attractive, they are not typical for the registration.
I sure hope I got that right!!!