I have discovered someone in this site has been copying and posting other peoples writings without their consent or knowledge. This is a very serious crime and should not be tolerated on a fantastic website such as this one. Please contact me for more info.
That would be hella easier if you’d left contact details.
Instead, why don’t you report the person yourself? Go to the blog in question when you’re signed in and, in your admin bar under Blog Info, click Report as Spam and put in the link to their post and the original post from which it was stolen. Staff take prompt action.
They do not generally take action on forum posts of vague reports that do not identify anyone or any piece of copyrighted material.