No! Dunst Opening is 1. Nc3 en.wikipedia.org

1...e5?? just allows 2. Nf3xe5

Isn't a 'King's Indian Reversed' a 'King's Indian Attack'? Just asking...

You could say that!

Benoni is a very good opening if black knows how to play it properly.

I've long been rather fond of the Benoni for Black. It's not for the faint hearted, though.

I'm not sure how good the Benoni really is - but I wouldn't really fancy playing the sharp lines of it, with a move behind...

I think white has to be more aggressive in this type of opening play since a lot of these hyper modern openings tend to get weakness exposed quite early if white remains passive.

Mechanical thinking, possibly. White was probably expecting ...Nf6 at this point.

Castling without need is very similar to a loss of tempo, in the early opening. This was an example.

This is looking like something you'd get out of an English Opening - a sort of Reversed Sicilian. It has not gone well for White, though. If White allows Black too much law in the centre, White is apt to get squashed.

I am supposing you rejected 9...h6, with the same idea in mind, on account of a possible 10.Qc1. But that might not have mattered too much as Black would still get in ...Be6 and possibly ...f5 as well before feeling the need to castle. It might not have been a bad idea to withhold castling indefinitely, as white is not well placed to develop a quick attack.

Ion, to be honest, I really didn't consider that, and maybe I should have!

I didn't read this move when I made my previous comment! Yes: hold castling until you can. This move allows Nc6 to jump to d4 or b4, and prevent for a good while any white incursion on g5. Jkarp: your Bf6 move does prevents the same, but it allows white's Bh6, which prevents black's castling.

Can someone please reverse colours?   If I give not coloured diagram and assess this position like that: "One player has more space, but it is undeveloped and has no attack. The other has a "perfect" defensive asset, nothing on the fourth rank, and no weaknesses. Which colour is each one?". You'll miss the answer...  

I can't understand the attacking function of Be6, except to x-ray a2, ot go defensively to f7... without need!, or to allow Rc8. Bg4, with the idea BxN and e4 can be an idea (good or bad). Bf5 fails after e4... black is playing "as black": happy to develop without "holes". But he could also play "as white": f5-f4. But the f pawn was already moved. And it will allow Bg5 from white, balancing the situation. So, unless you plan to play Qd7...