I agree that this is a highly subjective question to say the least. My GF uses kratom once, maybe twice a week at 5g doses and has no cravings or mental addiction to it whatsoever. Keep in mind she lives with me and has access to my kratom whenever she wants to, not to mention I make kratom tea twice to three times a day so if she wanted to she could go all out but kratom just doesn't have that "pull" for her. Same with my friends, my friends also have kratom about once or twice a week and only when they come to visit or we spend the weekend tripping or rolling and want something to bring us down to earth, none of my friends even have kratom in their house except one friend who keeps small amounts around for when his back starts acting up. Me on the other hand, I am self-medicating with kratom for my anxiety, occasional motivation issues, work induced back pain, and for the mood boost I get from the plant. I've been a user for over three years and have had 3 times where I quit for a period of over a month with the longest break lasting three months.
When I quit I simply switch to 200mgs of tramadol in the day time followed by anywhere from 1.5 to 3 grams at night. Each day I lower my tramadol dose by 25-50mgs and usually within a week to week and a half I'm down to nothing more than my bedtime dose which I can either keep tapering or make the jump. By week two I'm usually off everything and by week 3 I'm nearly 100% myself again. When I quit I always feel like I made a stupid decision, what I mean by this is I get no sense of satisfaction because I just kicked a habjt that wasn't even difficult and only made my life more positive(again, highly subjective). At first I thought that it was just the kratom addict in me trying to make excuses so I took a 3 month break and during this whole time I still felt the same way. My anxiety, motivation, mood, and focus issues all came back to how they were pre-kratom and I simply felt like a sick person without his medication so I said fuck it and went back on kratom. I've already proved to myself that I can easily quit however I see no reason to, I need to be medicated and kratom is simply taking the place of a less effective treatment that will be given by a doctor.
In no way shape or form should you take any of these experiences of others and make correlations to how kratom will affect you. Everyone is different, some people hate heroin, some people hate meth, everyone has their drugs of choice and their own varience in willpower. IMO just buy an oz already and see if kratom even works for you, you seem to be getting worked up about being addicted to kratom yet you don't even know what it does or feels like. It's not like your gonna take it once and be addicted, lighten up a bit, kratom isn't even comparable to heroin like you think. I see no reson why you wouldn't be able to use kratom sparingly, however I don't know your track record with other substances. Have you ever had a drug problem before?