What's with all the personality typesi

I got curious because I've seen several people describing themselves or talking about those on their bios. You know... INTJ, INTP, etc. I was just confused how normal the topic was. I guess I'm the weird one for not being aware lol. Btw, I checked when some of you were taking the test on the last post wins, and I was ISTP. https://i.imgur.com/v4hY2ZG.png Post yours to see what's the majority here...or kill time. https://www.16personalities.com/free-personality-test

boo...I expected to win on that part at least...

https://wx3.sinaimg.cn/mw690/87d788b2gy1fpzewzzxxpj20h30cn0we.jpg https://wx4.sinaimg.cn/mw690/87d788b2gy1fpzewzj3kdj20k00er0ty.jpg I collect such memes at times~~~They are funny~~~~

I guess I was out of the loop about the topic. http://i0.kym-cdn.com/photos/images/original/001/246/209/53e.png

Its (for) fun and I keep getting INTP or ISTP for the last few years Intuition and Sensing goes hand in hand for me PS. Theres more personality theories besides MBTI to confuse yourself more

Ayee! Another one, that's cool. Enki told me there were like 3 ISTP here in MO. It's 4 then. And it's not really the topic of personalities therories that confused me. It was more like, I was surprised about how for a lot of people is a popular way to describe themselves. Something like that, doesn't matter anyway.