Well untrained programmers who have no business writing C apps in the first place, for starters.

Everyone here is completely glossing over this as if it were suggested that this is intended for everybody, for every solution. If you're not extremely confident in your C skills, or have the experience to back it up, This is NOT for you! If you think you can only do it with another language, then This is NOT for you! If you think you're gonna write the next Amazon, This is NOT for you!

And lets not forgot just how many things are written in C and still running the internet. It's just another tool in your toolbox.