I don't like to upvoted content I haven't actually read. It feels like a hollow version of real engagement, and I don't like the realization that up otes I get are not indicative of readers.
However, I can see a benefit to using curation trails as a way to keep helping the community and earning a residual return when not active daily, like when on vacation. I prefer to delegate HP to curators for now, but it does come with that 5-day cool down before I can use my own HP again, so it's not good for short-term absences.