As an example of something I heard at least a year ago back here in HN: I get it that PHP can be secure and fast but that requires a lot of extra effort and I'd bet most sites don't want their programmers to work more because they will have to pay more?
(I am skeptical if porn sites even keep fulltime programmers on a wage; I'd bet they just hire them periodically.)
...Or am I missing something very obvious here and talking uninformed? I am curious.
I am not asking about site names or anything identifiable; just the tech side of things.