Not to mention, I don't really see all the fuss about EventMachine. I worked with it a few years ago, and it had some very subtle bugs that caused me hours upon

Not to mention, I don't really see all the fuss about EventMachine. I worked with it a few years ago, and it had some very subtle bugs that caused me hours upon hours of headache; it would deadlock under more stressful workloads, or it would simply ignore some packets (even though the proxy server I wrote for debugging it received them just fine and forwarded them). I just hope that they resolved some of them. And Rails has always been a dependency soup, so I am not too surprised to see stuff piled onto the ever-growing list (I have nothing against Rails, I even use it, I'm just not too happy about the bloatyness).