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The good part about Ruby: you can monkeypatch around framework defaults which do not maximize for your project's circumstances. The bad part about Ruby: your least talented coder can monkeypatch around security features which make his life more difficult ("attr_accessible? Stupid Rails coders, don't they know they have private for that shit? Well, I'll redefine it to just NOP. I am the awesome!")

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I find educating the least talented coder I work with a mostly social problem that I can solve over lunch [1]. But yes, I've definitely felt the pain of monkey patching gone awry. :-p Working around a restriction enforced by your language is no picnic either though and it's not really something you can solve cleanly.

[1] Obviously large companies with massive Ruby code bases can't really do this. Not sure what to say there.

The real problem is with the coders that you don't eat lunch with — the authors of the shitty gems that get pulled in as dependencies.

For your companies' code reopening a class should be a huge flag in code review (something like gerrit should be in place at every large company), but it's not sustainable to police the dependencies of the libraries you use, especially when the default in the Rails community is spray and pray.

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