Bubble bubble toil and trouble, methinks you are making much ado about nothing. Please try to put a lid on your ego. I am, and many others are more interested in the veracity of what is said than in who said it. Aside from the room full of monkeys with typewriters, I wonder if a person is capable of having all original thoughts that no one else ever had in a previous time?
In the purest definition sense, not passing off ones thoughts or writings as your own would mean you couldn't even adopt them as your own thoughts or words to express how you feel without plagiarism.. You should be honored to think that someone would think so much of your way with words that they copied you. If you have the earlier post date, you said it before they did. So what? After all copying is the basis for an apprenticeship (probably the best form of education) and as a very smart man once said, "there is nothing new under the sun".
But then alas, in this present age we are products of the armful of MINE clutched to our chests and the sue you mentality.
Che 409
(please feel free to use any "original" stuff written herein as your own if there is any and if you feel like doing so!)