user10794: I was browsing a question thrown up by Mr. Community when I noticed that one of the replies had been deleted by a moderator for plagiarism.
I'm impressed that it was noticed, but how was that done? Did the moderator just have a really good memory? Or was it reported by someone else with a good memory? Or are there some automated ways of detecting plagiarism?

user185: It was reported by someone else with a good memory. Plagiarism is generally considered rude, and folks are encouraged to report it when they see it; there's even a handy help-center page to refer folks to if they seem to be having trouble referencing others' work in a respectful manner.

10794: <p>I was browsing <a href="https://arduino.stackexchange.com/questions/5022/not-in-sync-resp-0x00">a question thrown up by Mr. Community</a> when I noticed that one of the replies had been deleted by a moderator for plagiarism.</p>

<p>I'm impressed that it was noticed, but how was that done? Did the moderator just have a really good memory? Or was it reported by someone else with a good memory? Or are there some automated ways of detecting plagiarism?</p>
 185: <p>It was reported by someone else with a good memory. Plagiarism is generally considered rude, and folks are encouraged to report it when they see it; there's even a handy <a href="https://arduino.stackexchange.com/help/referencing">help-center page</a> to refer folks to if they seem to be having trouble referencing others' work in a respectful manner.</p>
