If that's the case, then why do I have people typing me as ISFP? I mean, I'm quite certain of my preference being NeTi, but NP types that are not ENFP are quite rare, and as long as there's possible doubt, I have to keep considering the options. I think what would help me be most certain is to gain a better understanding of what each function really translates to. As they stand in my mind they're quite vague and ethereal. The more I think about how I type, and how others can be typed, and just the whole system, it helps me to better confirm my own type. I compare myself to people I have typed as INFP, see the differences in how our actions are supported by Ti vs. Fi, and that helps me to better assure.
It should go w/o saying: It's because people have a different understanding of typology, as well as viewing
you from a different vantage point. Consequently, this leads to differing conclusions from how you see yourself.
Likely reasons why you are not getting the responses you'd like to have are
1) You are not making enough of an effort on your own behalf. Posting test results and vague / terse explanations.
2) You don't participate much in forum interactions to really give anyone a clue.
3) You seem like you've made up your mind.
4) Apathy / Lack of interest.
You always struck me as more Se/Ni and your judgement function axis as more Fi/Te, which led me to think ISFP. You self type as Ti-dom/aux but don't display much personal understanding or extrapolation of existing frameworks. You don't make ideas your "own," rather you post test results you readily identify with, and when given a type you don't jive with, you are resistant to it. This seems like a manifestation of Fi/Te. In terms of Se/Ni, I see tendency to take things at face value (Se), and an underlying attraction towards mystical thinking under the form of aphorisms and feel good platitudes (Ni).
Enneagram type is either image triad (3 or 4w3) or type 9. You seem more like a 9 with a line towards 3.