C++ hatred

Why is C++ hated so much here in /prog/? Many good software are written in C++.

I'm aware that there are some problems in the language and it is considered "hard" to master it, but why do so many people hate it? What harm has it done?

Software can be written much quicker when using some scripting languages like Python. Software can be writte slightly quicker when using some managed language like Java. But when using those languages, the resulting program will require more resources to run. So there is place for C++.

For example, I bet the web browser of 99% people browsing /prog/ is written in C++. It's not perfect language, but it is the best language for complex program with relatively small CPU and RAM requirements.

What is convention in a language that uses bitshift operators for IO in the base language? Should "string" << 3.0f be a concatenation per convention? It would seem to be the behavior that would satisfy the principle of least surprise best, cout << "string" << 3.0f prints the string and number in succession after all... By extension 3 << 2 really should result in "32"?