I don't know if they are a mistake, but they certainly cover up a lot of cruft, which should have been handled. We now have languages which can't really be use

I don't know if they are a mistake, but they certainly cover up a lot of cruft, which should have been handled. We now have languages which can't really be used without an IDE, like C# or Java. That in turn result in programmers who can't actually program very well. I started seeing it way back in 2007, where some coworkers basically just used tab-completion in Visual Studio until types matched what a method required, rather than sitting down and doing actual design.