it seems nearly impossible to believe that you honestly feel that the OP and the reply are talking about the same topic. One is discussing experiences with the platform discussed in the article, and one is the "I don't even have a tv" comment in another guise. In case it isn't clear to you, "I don't even have a tv" doesn't contribute anything to the conversation.
It seems nearly impossible to believe that you don't think they are talking about the same topic. One is discussing a platform, and the other is stating why he won't use that platform. I respectfully disagree that it's not contributing.
The contribution is "this person does not use iOS" which is not particularly helpful in any way, and has resulted in an off-topic metabranch. This is the very definition of not contributing to the discussion.
The contribution is an implied "I think that stance by the manufacturer is ridiculous, and I won't even engage them." It's helpful because it highlights the ridiculousness of the manufacturers system. Sure, it could have been articulated better, but I think it's still contributing.
> which is not particularly helpful in any way, and has resulted in an off-topic metabranch
I would say that your statement has done more to forward this metabranch than the original statement ever did.
