I disable adblock on that dark site. I have uorigin blocking certain things on sites, when my computer takes longer to load the site due to how much is going on it. thus, it really depends on the site. I have a pos dell computer that has lots of problems, so any boost in speed is welcome.
though what the poster at http://harmful.cat-v.org/software/java said is true about Java, it isn't so much about C++, C# while preferring C over it. I doubt he'd write a network stack in linux, port a SQL server in C and a mail client if it was a senior C/C++ paid job. You don't even need to care about pointers in C++ if you don't use them and instead use the OOP classes, such as an object reference, which is safer because it guarantees object heritage (Inheritance) which eliminates the need of a garbage collector. Typical use case of this is to use push/pop operators over a vector array, where you don't even need malloc. (it's used internally, yes, but by going the inheritance way you let the C++ to handle it for you)