In every thread I started yesterday and today (Pixel Village, some price drop/freebies, probably some others), my first post appears under someone else's username. Just check out the thread for Pixel Village. They were all posted from the TA app on my iphone; I don't know if that is the issue. Given that this is a discussion forum, this is a pretty major issue. It could lead to someone getting banned for responding to someone else's first post. The whole header of my posts have been someone else...like I said, I think the first person to respond. AFAIK, it's only been the first post of threads I've started that have had this issue.
Still doesn't explain the Zombies! Run! Thread in the freebie forum, where I provided the appinfo. And several others. Unless I'm hallucinating.
I think your thinking of the ShellRazor thread. It too was deleted by Vegan because you didn't post an appinfo in the OP.