[alexis-d]

I agree with most of the article, except the yes/no part. In fact I think it's better to do :

"Do you want to do this (Y/n)?"

Where the most common option is uppercase so I can just hit enter.

[dmpatierno]

The important point here is to at least require that <Enter> key, rather than just using getchar() or whatever else and continuing on unexpectedly.