Isn't this just a guy that has nearly no experience in C++? It is evident that the for() loop uses iterators. Advocating for bare pointers and C-style solution

Isn't this just a guy that has nearly no experience in C++? It is evident that the for() loop uses iterators. Advocating for bare pointers and C-style solution is premature optimisation and blatantly wrong when using C++.. Finally, what is this post doing here? What do we learn from this?