I am a 25 year old female ISTP with 5w4 enneagram (I also think I'm close to being an INTP.) My reasons for joining are:
1. I just recently began talking to an INFJ who has been intriguing the shit out of my mind, which has led me to research MBTIs. I am now hooked
2. I have read here and there about ISTPs and would like to dispell some of the negative connotations people may associate with us.
All in all, I wish to learn from this online community and hope that I can contribute to further your understanding of my personality type as well