If we're talking about ranked, than absolutely. People who play like this in ranked should literally be banned on the spot; you should at least be forced to play a marksman and support bottom lane of all things. Normals I'm indifferent towards, people already bring the atrocious ranked attitude into ranked nowadays, it's funny seeing the people who have a period over off-meta players in normals tbh. If you want to play for victory and self-improvement, you play ranked. If you want to relax after a hard day at school or work, you either play normals, howling abyss, or some bots. You can't have it both ways.
I do truly feel your pain with the idea of doing "...nothing positive all game." I think that's more of an attitude issue though honestly. I've gone off-meta before (back when I played normals), but I had a desire to work with my teammates and have actual fun, so we all still did okay. I still don't feel as if playing off-meta in a normals game at least should be "reportable:, unless it's obvious that the person in question legitimately is not trying whatsoever and putting no effort into even working with his teammates.