Why?

Anything massive traveling between stars would almost certainly be either very slow turning, constantly in search of fuel, or unconstrained by widely accepted (though possibly non-immutable) physical limitations ... Would we be a fuel source? Perhaps we would represent a chance to learn about life, something we believe to be a relatively rare phenomena ... There's just not enough information to say why an entity would seek us out without assuming something about its nature ... intelligence wants to be seen? To reformat the universe to suit it's needs? An interesting concept. It certainly can evolve as an imperative (probably in a more specific form).

Perhaps you could refer me to more writing on the subject. I've been imagining Von Nueman machines crawling through asteroid belts -- Arthur C. Clarke chases them away from a first contact scenario by convincing them we will never conquer the stars. Clearly, I'm missing some links.

Oh and thank you for engaging me. The way you deal with concepts makes me happy.