My comment is highly presumptive because your comment was extremely stereotypical of people who make light of it, maybe stop using words like 'puritanical' when describing what works for other people. Your impairments might be light to non-existent, doesn't mean mine are.
The routes described prior are extremely puritanical, and if you don't see that, I am sorry that you are stuck wielding such repressive methods. They will be more of a detriment in the long run, as you realize that they do nothing to address your thought patterns. I am speaking from experience, as that doesn't seem to have been made clear.
What works for someone else may not work for you and vice versa, that's okay, it doesn't have to turn into you two being condescending assholes to each other or accusing the other of faking ADHD.
The question was how you personally deal with your ADHD and they answered with what they do personally to deal with their ADHD, stop shitting all over them and talking down to them for being on topic. If you wanna give constructive advice you can do without being a jerk about it.
I'm not saying you have to use commitment devices forever, but it's a great starting point. When one is deep into their faulty harmful behaviors, it's hard to have the mental energy to practice mindfulness and take a step back and exercise any sort of control over one's impulses. Maybe nine of out of ten times you may be successful in practicing mindfulness, but commitment devices[0] help you prevent that 1/10 from blowing your entire day up(or even week), precisely because they don't depend on your mental state at all. They let you precommit and make good decision for your future self when you are in a good state of mind, so you won't completely spiral down when you're in a bad state of mind. It's just another tool in the toolbox for dealing with ADHD.
I'm likewise sorry if I came off as dismissive, as that was never my goal. I was more concerned than anything. I am aware that a great deal of people downplay the impact of living with ADHD, and that can cause no end to frustration. This very thing led to me dropping out of college. However, I'd also like my easily-distracted brethren to see how they are empowered by their disability as well, and my goals were more to that end.
The only thing that really works is an unbreakable commitment device, make it so that the only thing you can do in any given situation is the right thing.