I only say to answer the question. I am not bragging...It is VERY easy and cheap as can be to 'abuse' DMT. When you extract an ounce yourself for less than $200 USD, are withdrawing from opiates, are in so much pain you NEED to be out of your body...and you don't have any ketamine...then DMT can become a source of relief (or abuse, depending on your POV.) It can be easy to use the stuff every hour in those circumstances.
Once again MGS knows exactly whats up. I remember it was so cheap, easy, and accessible. I loved it, had problems sleeping, it seemed to have a marked anti-depressant effect, I am/always will be pretty fucked in the head, and so I figured why the fuck not/vaped DMT daily for about a year or so. It was a pretty fucking glorious time, I would just load up anywhere from 10-150mgs into my bong one my last or second last MJ bowl for the night around 10PM-11:30, just blast off, have some fun, some serious thinking then hit the sack. If I felt like it like it I would hit a dose or so up during the day, or when I was tripping on other things. Yes I had a bit of tolerance but DMT really effects tolerance oddly as fuck and as long as you have grams upon grams....whats a couple hundred mgs extra? Nadda really. I liked that year, learned so much, felt like that was probably my biggest time of growth since beginning this ride and I also had a fucking blast in a ton of ways.
SF, you totally can force a breakthrough, literally. I get you get it, but if you load up 250mgs(rarely need more than 120mgs but some people are truly hard headed...) and the person vapes it perfectly in a few minutes, in the right time span, they will be on the ground, maybe mumbling or making incoherent noises/shaking their arms a bit for about 10 or minutes, they'll get up and either be like "HOLY SHIT WTF JUST HAPPENED?!?" or grab you by some article of clothing and rave to you whilst foaming from the mouth about what a miracle DMT is....seen it more than once.... I totally get what your saying but its like this, a break through is hitting a certain plateau with DMT, it isn't a state of mind, its how obliterated you are by the DMT, at least to me....
Anyways, what constitutes abuse anyways? Vaping DMT as an escape, or just something to have fun? People really don't do this, DMT can whip you and leave one MF'er of scar behind. its surely different from those received from the long lasting but either way getting slapped by DMT is no fun....and most people wouldn't subject themselves to this over and over unless their masochists or something!