I apologize
Apology accepted. Don't let it happen again.
did you have something important to contribute
I just did. I helped you learn a little about possessive nouns. The knowledge may come in handy over one's entire lifetime when attempting to communicate. I helped you gain a life skill. I should think you'd be more appreciative.
I didn't know forum posts constituted as to-be-published articles?
I'm not aware they do, nonetheless you were attempting to communicate however it was stymied by your improper apostrophe usage. Don't be afraid to just thank me. I will not charge you for this service.