[QuadDamaged]

As far as I am concerned, all of the BCL has pretty much been 'open source' since Reflector came around in 200..2?

[rjbwork]

There's a big BIG difference between "source readable" and "open source".

[MichaelGG]

By that logic, essentially every binary is open source. After all, you can dump a listing for any binary. And decompilers will create C source code (though it isn't always compilable). It's much different to getting the local var names, comments, actual source structure.

[CmonDev]

No, you still have to deliberately decompile it. JavaScript web sites on the other hand are always open-source (readable with a standard browser).

[TheCoreh]

Having access to the source code doesn't mean it's "open source". Open source has to do with being able to reuse the code yourself, not to being able to read it.