It becomes a witch-hunt when he encourages people to submit prior art to invalidate the patent
It's curious that you did not justify this statement. The author did not (to my reading) encourage people to spam the USPTO with the same prior art submission that he/she did. I might agree with you that such a move would be counter-productive. The reality, though is that submitting prior art to a patent application is how the system works, so how can encouraging people to work with the system be considered a witch-hunt?
Sure, the author is encouraging people to do so as a way to 'spite' Makerbot, but the end result is that the USPTO has crowd-sourced prior art with which to make an informed decision (and this is not a bad thing).
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It's curious that you did not justify this statement. The author did not (to my reading) encourage people to spam the USPTO with the same prior art submission that he/she did. I might agree with you that such a move would be counter-productive. The reality, though is that submitting prior art to a patent application is how the system works, so how can encouraging people to work with the system be considered a witch-hunt?
Sure, the author is encouraging people to do so as a way to 'spite' Makerbot, but the end result is that the USPTO has crowd-sourced prior art with which to make an informed decision (and this is not a bad thing).