[gfunk911]

Exactly. I find it helps to also state that it doesn't mean "Don't Repeat Characters"

[dllthomas]

I've pointed out in the past that if the characters you're deduplicating don't actually have the same meaning, you're just compressing your code; I've been trying to popularize labelling that kind of aggressive misapplication of DRY "Huffman coding".

[cogman10]

It's because you are using the wrong term that it's not caught on. Obviously this is run length coding or maybe LZ coding ;).

[marcosdumay]

On the other hand, if you keep repeating the same character sequence there is probably some structure on your code that you can also abstract away. You are not restricted to factoring business concepts.