[dlubarov]

No one's saying wasm apps will be open source, just that there will be a reasonable way to inspect their logic. Of course making sense of certain wasm apps will be challenging. JS code can be hard to follow as well, if it was generated by a tool like GWT, or minified, or obfuscated.

[lisivka]

I am agree, that wasm will be on par with generated/minified JS right now, but I predict that wasm will beat JS in future versions. My prediction is based on experience. It is very easy to introduce a binary thing which is hard to map to flat text. I.e. first version of wasm will be 1:1 map to JS, but NEXT versions of wasm will introduce optimizations, which are quite possible in compact binary format but are not possible in flat text format, so 1:1 map from wasm to JS will be broken.