Ah I did see the chameleon variation recently and they they were talking about having the option of playing open or closed sicilian. Why would black fear it though? If they're playing the closed you can't really stop them and I would think the open is what black wants to play anyway. Looks like it would transpose to a normal closed sicilian more often than not.
Sicilian Defense: Closed Variation
Your game looks similar to the beginning of my game against the 2255 I posted here pfren. According to my opponent my playing f4 in that setup was wrong. Is there a difference in your game that makes the placement of the knight on e2 okay after e4? Appreciate it.
Ah nevermind it's not that similar as my opponent had already played d5 and I had already played d3 making the d4 follow up not as practical.

Ah I did see the chameleon variation recently and they they were talking about having the option of playing open or closed sicilian. Why would black fear it though? If they're playing the closed you can't really stop them and I would think the open is what black wants to play anyway. Looks like it would transpose to a normal closed sicilian more often than not.
Actually, Black does have alot to fear.
The thing you have to remember is some players play certain set ups against the Closed Sicilian.
While they may play other set ups against the Open Sicilian.
One very quick example I can give you is lets say black plays the Najdorf against the Open Sicilian.
Against the Closed Sicilian lets say they play Nc6 + e6.
Going for more of a Tamianov/Kan/Paulsen type of structure.
Now here is what black needs to fear.
Lets say we start off like the below diagram:
Now at move 4 white plays 4.d4!!
The line has now changed into an Open Sicilian.
However, Black doesn't play this type of position against the Open Sicilian.
They like playing the Najdorf.
How can they play the Najdorf here?
The line they are playing is a Paulsen now.
If I was black I would be terrified.
White bascially tricked black into playing a line they never play.
Surely that is something to fear.
Since white may be very experinced in these type of positions.
Now again this is one example.
However, I have done this to other people in rated games.
One time I tricked an opponent into playing the Classical Sicilian lol.
After I did my move he started getting upset with me saying I had tricked him and I was a low life lol person.
Oh yeah I ended up crushing him.
Yeah you can see how the same position arises which is the Classical Sicilian.
My opponent didn't play the Classical Sicilian.
He was steaming hot in chat.
He was cussing me out and everything.
I was laughing the whole time.
Ended up crushing him in a couple of moves.
He got upset and left lol.
Didn't even resign or finish the game.
He simply disconnected in pure frustration.

Once again Jengaias shows his colors.
You read what you want to read.
I simply showed how black can have fear in such a situation.
I play the Najdorf myself.
I know the struggles lolurspammed is talking about.
In the Najdorf black rarely plays Nc6.
The knight is better placed on d7 in the Najdorf.
I am sorry that no one is an expert in every line such as Jengaias.
Jengaias can play any line no matter what it is and play chess to perfection.
Most chess players don't have that luxury.
We play lines we know.
If we don't know it we don't do very well and we lose.
It is that simple.
If your opponent tranposes you into a line you don't know than you have a high chance of losing.
Furthermore, If they know the line very good.
That only makes the chance of you losing increase even more.
As long as black makes sensible moves it shouldn't cause him too much grief unless you're theoried up on the classical and know some tricks. At least that's what I'd think.
We're talking about tricking someone into playing the classical variation, not the najdorf. It would be hard to trick someone into playing the najdorf since neither of the main setups I've seen against the standard closed sicilian call for an early a6.
You could trick someone into playing a taimanov, a dragon or a classical if they thought you were playing the closed sicilian and you flipped the script and played the open. But you couldn't trick someone into playing the najdorf by bluffing a closed sicilian. Unless they were a najdorf player anyway just sticking to their standard moves in which case you would want to stay with the closed sicilian anyway.

True. In one of my only games against the Sicilian my opponent played it and annihilated me! I was trying for this setup:

That's not true at all. Play the najdorf without knowing theory and you're dead.
Lolurspammed speaks the gosphel truth.
Same statement can be said for the Classical Sicilian.
Trying playing against the 6.Bg5 lines in the Classical Sicilian.
If you think there is no theory in that line.
You are only fooling yourself.
6.Bg5 is considered one of the most testing lines against the Classical Sicilian.

B61, Sicilian: Richter-Rauzer, Larsen variation anyone?
http://www.chessgames.com/perl/chessgame?gid=1067597
In which universe?

It's a matter of right choice.
Yes ,there are Sicilian variations which are (very) low on theory. You just have to understand the resulting positions. Of course they aren't fashionable for a reason (not always!) but this "reason" is nothing to be worried about, especially at the amateur level.
But of course it's not so easy to fully understand most of these positions, don't let that patzer Anand fool you!

No, but really, I don't even know what the Najdorf is, let alone the Falkbeer where an IM is losing almost all of his blitz games, before giving up.

You need theory for these openings!! No matter what the opening!!
Here's an example of someone trying to play without caring about theory:

I also tried to play najdorf variation without knowing any theory and got crushed!!!!!
You'd rather try learning how to upload a game/pgn here before learning the Najdorf... it's a tad easier!
And: if you generously donate wood/ plastic to your opponent, you will lose, regardless if you know theory, or not.
Who came up with Nc3???????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!
It's Nf3!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Unless you idolize Paul Keres then Ne2 is acceptable. Maybe Nc3 once in a blue moon.