Clicked on my name at the top of the page to find a post I had made the day before and found Sadclownwp's posts mixed with mine. I don't know what went wrong, but something definitely went wrong... and it isn't a one-time thing. every time I click, his posts are in there with mine.
You were looking at the activity tab. It shows your posts and those of anyone you are "friends" with on INGO. If you want to see just your posts click on your name and choose "View Forum Posts", or click on "Find latest Posts" on the left side of the profile screen.