Comment by SassyGrapefruit

Yep. Re-use is difficult. When you overdo it you cause a whole new set of problems. I once watched a person write a python decorator that tried unify HTTP header based caching with ad hoc application caching done using memcached.

When I asked exactly what they were trying to accomplish they kept saying "they didn't want caching in two places". I think anyone with experience can see that these items are unrelated beyond both having the word "cache"

This is what was actually hanging them up ... the language. Particularly the word "cache". I've seen this trap walked into over and over. Where a person tries to "unify" logic simply because two sets of logic contain some of the same words.