I don't really like the idea with having a special tag for people that would like an upvote. In the end of the day, everyone would like an upvote, it's not entirely fair to restrict it to people that have (a) become aware of this post or initiative, and (b) are begging for it (through using such a tag).
I was for a while trying to navigate through the "new"-feed, and later through different tags that interests me, and upvote whatever seemed upvoteworthy. Unfortunately, I don't have much time now and there are so much junk out there to sieve through ... but I believe that's the proper thing to do, everyone should spend some time doing that.
In an ideal world, yes. Everyone would check the new posts and upvote the good ones. But not many are doing that, it seems the flavour of the day is increasing rewards for oneself. But all the rewards earned will be worthless unless steem carries on growing.
So for now, giving some plankton votes to encourage them to continue participating is a worthy goal and as an investor in the platform, I want to see more users stay and even make enough to feel so excited, they tell their friends. That's how social media platforms grow.
This initiative isn't mutually exclusive to finding and curating content manually. I am still doing both