Refusing to learn something because of others's influence is not sensible. If you're so in tune with reality you shouldn't be allowing things as petty as insults and immaturity keep you from progressing personally.

This blog post directly reflects what the writer is condemning in the first place, hopefully no one will take it to heart.

Do you really think that before the advent of rails the developer community was free of childish and immature behavior?

The point is that the rails community is more childish and immature than other communities; the author explicitly calls out django as an example of a community that is less immature.

Could you explain what your counterpoint is, is it just that people used to be immature too? Obviously there have been immature people throughout history, and obviously there is going to be immature people in any community. Historical immaturity is totally irrelevant here, we don't get to choose between a community in 2006 and a community today, we only get to choose between community A today and community B today. If A is a weaker community today than B is today then why join it?

There are certainly ways, though, in which the Rails community (and its leaders) have enshrined childish behavior.

The sad part is that it's about 50/50 - some of the core team are gigantic jerks with inflated egos. Some of them are lovely. And the only thing I can say bad about the lovely ones is that they don't call out the jerks for their jerkiness. All that is needed for evil to triumph and all that.