http://youthoughtwewouldntnotice.com/blog3/ has been around for awhile, but now with Pinterest, Dribbble and other resources, it's becoming a lot more common to find the people who are making it difficult for designers to feel like they can truly stand out.
Outside of flat copying/pasting code, it takes a little more to get it to be functional. By nature, lots of developers are working in teams where collaboration/pair programming is promoted to begin with. You work on projects where it is essential to team up to figure out what's going on and what could make it better. In order to ensure the project continues to move forward and work, there needs to be a method to the madness that everyone understands. At the agencies I've worked at, while everyone was a designer, we all had our specialties and we didn't really work together much outside of talking about general branding guidelines/techniques, etc.
In design, all it takes is having the same software to mimic something. So when someone that is actually doing honest-to-goodness original, clever stuff gets jacked by the hacks-at-large, it is easy to get defensive and want to lock it down, particularly when you make your livelihood getting clients that like your style and it is suddenly watered down by clones and you're not getting paid to do what you made popular anymore. On Dribbble, I've seen it go so far down the hole that people have both claimed the original artist was the hack or said "Really reminds me of [hack]'s work.." on someone's copy of a copy.