Smug reply says that gems require things to work, and given that they're usually dependent on some version of ruby then the smug reply is usually right.
It's not generally obvious to non-developer end users that they will (sometimes) need to install the -dev package on their OS. Would be nice if it were. I'm mostly taking issue with the unfriendliness of the comment.
There is no article attached to this post. Just the homepage of a small piece of software targeted at developers who are familiar with installing gems.
If YOU read the content that was linked, you'd see there is a very long README targeted at people who aren't Ruby developers.
