Even though I clearly have a long history of binging (which fortunately now is in 'remission'), for some reason this urge was never triggered by IFing for me. However, what was really detrimental for me was doing two weeks of Ultimate Diet 2.0 - which has you eat at a 50% caloric deficit for 5 days, normal calories for 1 day, with essentially an all-day food bender where I was aiming for about 200% of my daily calories, no fat and 800+ carbs.
Eating on a 50% (or more) deficit for me was about 750 calories per day, which could only be accomplished by the strictest measuring - I even got so ridiculous as to weigh the ROSEMARY SPRIGS I was adding to my turkey breast. Since my personality can lean towards the OCD end of life if I let it, this obsessive weighing and measuring really fed the militant calorienazi side of me, and one engaged, was very difficult to erradicate.
This experience was really humbling, because I had been so sure that my binging was a thing of the past, and all it took was 2 weeks of this cycle to completely throw me back into the old patterns of obsessively planning my 'binge' day while allowing myself the barest bones of survival in terms of food. It took me several MONTHS to get back to a healthy place again, which I accomplished by:
1) Not weighing myself on the scale AT ALL. Not even just once.
2) Not weighing my food to portion it out (unless I needed to weigh raw ingredients for cooking purposes)
3) Constantly reminding myself that I was focusing on my physical and mental health, weight loss could wait until later.
4) Trying to take pleasure in as many things as I could so that my pleasure didn't solely come from fantasizing about a binge.
5) If I felt likely to binge, making sure I wasn't alone or with access (money, availability) until i was strong enough again to resist on my own.
Now, months later, I'm back to a good place where the thought of binging rarely occurs, and when it does, I can talk myself out of it and use my coping techniques. But damn, it really is a lifelong battle. I'm just a better fighter now.