If a thread you posted in got removed, you wouldn't receive any message and I can see that the thread The sadness is called Merit got moved to the trashcan and you had 4 posts in it.
Why was my theme removed? can you explain ?
Well, you should know that there are many repeated topics each day. Most of the people are lazy and don`t make a search before opening a new thread with an already answered question, or a repeated topic, as said. That`s why some threads end in the trash, because are repeated and, if allowed, will pollute the forum a lot.
So, before answering a thread, try to look first the quality of the discussion having place. Of course, if it is a megathread full of nonsense quotes or if the thread itself has nothing to add to the forum, maybe you will be wasting your time, for the thread will be probably deleted.