I'll agree, that's probably suchmoon's motivation; she's a staunch fighter of plagiarism and those who abuse alt accounts.  But is that QS's gripe with her efforts?  Is it such a bad thing for suchmoon to focus her attention?  How does that affect our privacy?

The only reason to be concerned is if you're a plagiarists or an account farmer who abuses sig campaigns with alts...

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Oh dear, I think I just typed the answers to the questions I had.  Sorry for being so slow witted.