When did the slash become too hard?

Hyphens and slashes are not interchangeable.  In fact, they're nearly opposite.  This fact seems to escape more and more people all the time.

Why else would we see mistakes like, "It's a win-win situation!"

What is a "win-win"?  Is it anything like a win-celebrating sports fan?  Or a game-changing decision?  Or an overhead-cam engine?  Or a sun-dried tomato?  A hyphen takes multiple words and turns them into one descriptive term.

When you have two sides or two options to a situation, you use a slash to separate them:

win/lose situation

client/server system

on/off switch

key/value store

work/life balance

Come on, guys.  It's not that hard.