I understand what you are saying and I understand the difference. My personal experience tells me that there is a significant overlap in how to deal with chemical addictions and ingrained unhealthy behavioral habits.Addictions are not what I'm talking about when I say "Just stop doing it". Addictions change brain chemistry in such a way that the addict feels physical discomfort and pain -- part of the process called "withdrawal. Addictions often require medical intervention by replacing the addictive substance with something more controllable.
Particularly for people who have had trouble with substance use, behavioral addictions can very closely mimic the same reward pathway of addictive substances. I acknowledge that there is a dearth of quantifiable research in this area. I have dealt with both and was able to recognize that what was helpful in overcoming addiction to drugs and alcohol is also helpful in trying to break long standing habits.
Some people will benefit greatly from discussing ideas and getting support from others. If "just stop doing it" was a viable option, that would have already been done.
You have found your process for what has worked for you ("just stop") and you have shared it here, which is valuable to hear. But discussing someone else's approach (seeking ideas and support) in a belittling way is no longer helpful.