Why the Share Box is wrong and +1s shouldn't bring it up

I +1 something because it's cool.  That's enough.  If I want to write a paragraph about it, or tell people why it's cool, then I'll push the "share" button and be excited by the chance to set which circles this post goes to, etc.  But for now, why not keep +1 more like "like" (that is who you're copying, afterall) and just make it a quick and passive share (then better integrate them into the social feed of G+, you know, like actually having them there in the first place.  What's the point of a profile?  Profiles, timelines?  These are the past.  It's stream stream stream and it's gotta be new and different.  Why not put the +1's in and then help people to +1 more things by making it less annoying?)