[Jtsummers]

> Blowing up language is not nice even for me as a businessman - now I have to place special care about who's coding what and how, something I didn't need to do up until now (in case of C).

This part is fair, but I've never worked (professionally) in a language that had a BDFL who controlled its extension in a deliberate fashion. It's always been design-by-committee languages. As a consequence, since I began, we've always had coding standards that limited what portions we could use for which projects (usually with options to try out novel parts of the language/standard library with extra reviews). And this is even true with C, though the restrictions weren't as severe (working in embedded, typically mandating no/limited use of malloc/free and no recursion, direct or indirect).