> comparing without acknowledging that it is an implemenation issue

Because that's implicit at this point – I'm not going to prefix with “because Earth geometry is approximately Euclidian at our scale” every time I'm telling a tourist to go straight ahead for 300m to their bus station.

Just like when people say “C++ is fast”, of course they refer to clang/g++/msvc, not some educational university compiler.

I seriously doubt it, given how many discussions go on HN or similar sites, revealing a complete lack of knowledge in compiler design.

Of course the authors of many of such comments aren't to blame, they only know what they know, hence why https://xkcd.com/386/