I honestly don't understand this bizarre urge to get poz, till I was 23 yo I've only done sex with condoms, that was the time I've found out I was poz, my guess and my doctors is I've caught it when I was 14yo (I had a minor condom issue at that time, I was losing my virginity), and what I can tell you it wasn't a fun journey at all.
Yes it was good to get undetectable and stop freaking out about hiv and bareback feels so much better, but when I started the treatment I had a cd4 of 18, had shingles, pneumonia (the specific type for hiv), and a few days later tuberculosis (which fucked me up good for almost 2 years trying to get back to normal health), I weighted 54kgs and I'm almost 1.80m, I looked way too thin and my face cheeks which used to be very rounded and full became very reduced, they got better, but they still reduced a lot, it's fine for people who don't know me, they will think all is well, but the ones who knew me do notice the difference. I still have the marks of shingles everywhere, they don't leave.
After getting undetectable I had bareback sex with other poz guy also undetectable, I thought we were coming out clean about our STI's, but he didn't know he had HPV, I've ended up with a wart on my cock (i'm a top), and later on that wart spread even inside my butt (yup, not cool!). To remove both of them I went on 2 surgeries, cock with a normal procedure (electric scalpel) and I'm telling you a scalpel pointed out to your genitals is a horrible feeling (plus the blood on your brief later on), and the other with laser (yes laser inside your ass), it was so many meds and pain killers I had to take, also a diet change. After a few years I went to my endocrinologist and she asked me to went on hormone therapy for a while, to increase my life quality as my levels were slightly lower (it really did work) and one of her exams some of my bones were developing osteopenia, that's how much of an annoyange hiv can be, with the proper diet, workout and the hormones for about 1 year I've managed to fix it., but it was hard work So if you think getting poz is fun and there is very little dangers with bareback, well, I'm sorry to say, bareback is amazing but it comes with a price,