IMO, 3 is the most difficult type to see online. I can't quite explain why, but it sort of hides, unless it is outwardly obvious. [MENTION=22264]jscrothers[/MENTION] is a 3, as is @Lataralus, and I agree with their typings, but unless I were told I wouldn't have guessed it easily (if at all). Same with [MENTION=19948]Showbread[/MENTION]. However after getting to know Showbread fairly well, I see her 3 type as more readily apparent.
That said, in person I think it is much easier. During the meet up you and I agreed that both of our 3 fixes were significantly easier to spot in person, to the point of overshadowing it in the right context. On the forums my 3 doesn't appear too strong (6 seems a lot stronger) but in person my 3 stands out FAR more. Because I'm a 1, I actively try and hide my 3 tendancies, since my core 1 regards them as a "problem". That's another matter though. I'm starting to notice that 1's are actually somewhat difficult to spot in person, unless it's in a work environment. In person, my 1-ness is pretty obvious, as is yours, but to someone who knew us lightly, I wonder if they'd guess it. I know several other 1's that it's not obvious. Maybe it's introversion? Anyway I am going off on a tangent.
Per the current discussion [MENTION=6724]DiscoBiscuit[/MENTION], I think ENTJ is accurate and obvious. I guessed that rather quickly without your type being listed a long time ago. Enneagram less so. I am torn between 8 and 3. I actually see 3 as more likely, but this stems from the fact that I have seen you posture and self-pedastal very frequently (particularly in the past), often shamelessly, which is often regarded as a trait of 3's. Even so, I tend to think stereotypes as being unreliable for typing. Because of this, I lessen the likelyhood of 3 beyond what I actually see in the ways of signs of it. I don't think 8 is wrong, and if that is your type (which I regard it as such, as I don't doubt someones self type unless it's obviously wrong), but I don't readily nor often see signs of it. I recently have. 8's have this air of confidance that doesn't seem or appear intended, it simply is. With 3's, it's often easily see as put there intentionally (assuming they have it), albeit it's still genuine. I've seen you do both of those, which is part of the being torn.
Curious thing about enneagram is the individual is easier to type when they are less healthy.