#Perfectly fine as long as you cite your source.
Perfectly fine as long as you cite your source.
Look at the veeery bottom of the page. That says:
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If you follow that link, it takes you to a blog post of Jeff Atwood's which says:
Attribution — You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).