Crimson, you really shouldn't have been worried. Rather, you should have done a bit of investigating.
In the example you used, everything was copy-and-pasted. If you go back to the question now, I had to edit everything to make sure it was block-quoted. Really, copy and pasting a few passages is pretty easy to do in a few minutes, so it wasn't 'planned'.
And I'm not sure if this is a recurring issue or not, with ShinyFire answering questions really fast, a lot of ShinyFire's answers are just blockquotes. All of your examples except for two (I think) are literally quotes with a 'Hope I helped - Source' thing at the end. So that's the only reason he's a fast answerer.
Also, after going through ShinyFire's answers and Mr Gamaken's questions, I only went through the first few and there was no shocking similarities. Among the first seven questions on Mr Gamaken's list, only two were answered by ShinyFire.
So really, there was nothing to be worried about in the first place.