I think it is reasonable to rebut the premise of an argument (in fact, if the reasoning of the argument is sound, that seems to be the only basis on which a rebuttal can be formulated).
Article Premise: [the internet provides] an intersection of the people working on interesting things and who like to write about it--and that's not the whole story.
Article Conclusion: Your time may better spent getting in there and trying things rather than reading about what other people think.
tester756: I think [the internet] allows you to become better not only faster, but also makes you more aware of different perspectives
Charitably reading, I understand tester756 to be saying that in fact, that intersection is broad enough that the article's conclusion doesn't readily follow.
Did tester756 provide enough of a warrant for the rebuttal? Maybe, maybe not. Frankly I don't think this article warrants a high degree of rigor to comment on it, though, so I think it's fine.
Article Premise: [the internet provides] an intersection of the people working on interesting things and who like to write about it--and that's not the whole story.
Article Conclusion: Your time may better spent getting in there and trying things rather than reading about what other people think.
tester756: I think [the internet] allows you to become better not only faster, but also makes you more aware of different perspectives
Charitably reading, I understand tester756 to be saying that in fact, that intersection is broad enough that the article's conclusion doesn't readily follow.
Did tester756 provide enough of a warrant for the rebuttal? Maybe, maybe not. Frankly I don't think this article warrants a high degree of rigor to comment on it, though, so I think it's fine.