I was at Yahoo when they did a big email redesign, and the new design didn't work for 1/2 their users. Digging deeper, they found that email users kinda fall into 2 camps: filers and pilers. Filers carefully organize their data so they can quickly navigate to their target. Pilers just collect stuff in a big pile and use search to find their target.

Sounds like you're a filer (I am too). Sounds like emdash is kind of a mix of filing and piling.