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A comment on Sprayprinter – A graffiti robot startup. Parent comment

Re:Sprayprinter – A graffiti robot startup by mark-r on Thursday March 21, 2019 @02:28PM (#19455696)
Before the post title was changed it contained a question, "any idea how its hardware works?" That's where my comment was directed.
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Re:Sprayprinter – A graffiti robot startup by SiftedTech on Thursday March 21, 2019 @03:59PM (#19456610)
I haven't changed my question - don't know why it's been edited or how?
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Re:Sprayprinter – A graffiti robot startup by yorwba on Thursday March 21, 2019 @05:16PM (#19457407)
The guidelines admonish us to "...please use the original title, unless it is misleading or linkbait; don't editorialize." https://news.ycombinator.com/newsguidelines.html
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