Yeah, this is why spamming your general status page with lots of information is a bad idea. I have no idea what's going on there. At first glance it looks like half their services are having issues, which makes me think it always looks like that, which means it tells me nothing without digging into the detailed issues.
This is super nice for anyone running RHEL/EL, lets you use recent versions of Python, Ruby, Perl, etc.. without having to package everything yourself.
Interesting bit from the linked comments via "egoodman85":
Hey, just want to clarify something as an Etsy employee. It's not your purchases that are public - it's your feedback on those purchases. I know it's a small distinction, but it's not like we have some sort of desire to publicize our members' purchases. Feedback is public by default just like it is on eBay - to increase accountability and transparency. It's also worth noting that feedback has been public since the site's launch (in fact, the option to make it private was only added recently). The new People Search feature does not change this at all.
CentOS, Fedora and RHEL use Python for most of the system tools and as such integrating or contribute to those projects will be easier if you know Python.
That said the recent/popular systems automation and conifguration tools (Puppet, Chef, etc..) are predominantly in Ruby, so that is a good choice as well.
I prefer Python, but as spooneybarger said, if you end up using the systems version of the interpreter with CentOS/RHEL you're going to need to learn the differences between versions. Luckly EL 6 is coming out soon and you'll get a fairly up-to-date version.