Hi,.. this was happen to me once, I saw popular post here on forum right below my profile picture, quick interest thread, but when I visit the thread I saw it was created long long time ago... when I hit reply, Admin/Mod came to close the thread and my post just deleted. question is, why displaying old popular thread if you can display another.. that all.
Thread popularity has nothing to do with when it was created. It's automatic based on how many people are viewing the thread right now. If 100 people are currently viewing an old thread vs. 10 people viewing a new thread, the old thread is still more popular.
So why does it get deleted if you post a reply to an old thread? If it is popular and people are looking at it.