Yes I have sebaceous filaments but they are only noticable in my 10x mirror and are light tan in color. I don't have blackheads --- which may be due to getting monthly microdermabrasions at my derm's office. But I never really got that many anyway. My acne problem was deep painful infected cysts and whiteheads on my nose, in addition to rosacea flare-ups on my cheeks. All of that is gone now except for occasional small flat pink spots on my cheek from rosacea...due to stress from traveling, not being able to stick to my diet, etc. They fade away quickly within hours or a day. I don't think there's anything to do about them more than I'm doing since rosacea is triggered by weather, sun, stress and things beyond diet. And I already take the 40mg Doxy (anti-inflammatory...not antibiotic dose) for it. They don't happen too often. The diet I'm on has helped though as excess oily skin seemed to make them more frequent.
I think it takes at least a month or two to reap rewards from this diet...although I saw results within 2 weeks. The reason why is pores take awhile to get clogged up and so you have a residue of junk to expel while your skin is changing to being less oily. As the residual acne resolves itself the skin becomes clearer. But it takes a bit of time. This is where some topicals can help the process along and I'm sure my regime below helped the process go more quickly. I know there are some people on this site who are purists and think that if you doing any mainstream meds along with diet that it doesn't count...but I disagree. For those of us with chronic serious acne, it would be too awful to go off the meds while experimenting with a diet. Actually I did that two years ago...my old derm wanted to see what would happen. OMG --- what a mess. My skin returned to hell in about 3 months...deep infected cysts, inflammation. Horrible. My current derm immediately put me back on the meds and added monthly microderms, BP cleanser and topical Cleocin-T antibiotic. To really test this diet I want to eventually try weaning off spironolactone and the anti-inflammatory dose of doxy (40mg). But he doesn't want me to right now. He wants my skin to be "normal" for awhile before changing anything.
However on this diet, what is amazing to me is how my whole body seems to be doing so much better. Besides clearer skin, my complexion is a healthy peachy color and I don't have an oily sheen anymore...just a dewy complexion. My digestion has improved dramatically and I have tons more energy. I think all that oil and margarine I was eating before must have been clogging up my system somehow...not sure how but I can see the difference.
Because I'm avoiding oils, I find I eat much more food overall...and that means more vegies. This is probably a key to the improved health. I eat a ton of cooked and raw vegies, often two potatoes, more interesting things for breakfast like potatoes and kale with a poached egg, etc.
I have lost weight avoiding oils and am at a very trim 120 lbs for my 5'4" frame. I don't want to lose more weight and so am really packing on the food...which my body seems to love! Also I don't eat sugary foods so that also leads to weight loss. A typical dinner for me is a HUGE salad with raw vegies, 4 red potatoes, small portion of salmon or turkey, and a BIG helping of broccoli steamed with garlic and mushrooms. As you can see, I am not depriving myself. Lunch is usually leftovers with rice.