A reminder that Off-Meta =/= Trolling

Not necessarily. It's one thing to pick an off meta, and proceed to not do anything/troll/feed. But if you can do it well, and help your team win, that's not trolling. I've had successful times in the past seasons like Zyra jungle that were crazy good, but with the way balance is now, there's no way in hell I'm doing that now.

You can go off meta by making a viable pick to your role that is suboptimal or weak on the current patch and against the more frequently played opposing champions. That is perfectly fine. If you pick a champion that is straight up unviable to the role that you got, then you are intentionally giving the other team an advantage over yours, and yes, that absolutely is griefing. If your team expects you to do a job, then picking an inadequate tool to do it will trigger their rightful indignation.

Analogy: if you are building a house and job is to nail a cross beam to the support structure and you choose to instead superglue it there, the people who have to pass under that crossbeam to do their jobs will rightfully demand that you get nails and a hammer instead, because you are endangering them.

If you take Teemo Jg..... you are trolling. The only time its good is when you are playing against a jungler equally as useless

I don't know about that. AP Draven jungle is pretty troll.