Some of you may remember it. The OP appears to be banned. But I probably shouldn't go in to that.
I'm an ENTJ who was once an ISTJ as a teenager, and likely closer to an ESTP as a tot. (Judging from my personal memories). I think I took the enneagram test once and got a... 3? But I'm not 100% sure, so not listing it. And I only heard of Socionics, yesterday.
I'm a software engineer and classical guitarist, computer scientist, mathematician, amateur composer. Which is strange, because everything I've read tends to say these are all more commonly I focuses (solo activities).
Been fascinated with type theory since I was 16. Read several threads on here, but I finally signed up, today. Hi, all!