Although submit own thread is not wise but we should not discourage them. On the other hand thread is self moderate, once OP consider spam post then he is free to delete that.
I recently deleted one very bad link. I've been very calm with the delete button in this topic, so far the entries are quite decent.
I check all entries, but don't merit them all. Sometimes because I've seen the post already and didn't merit it then, and sometimes
because it goes over my head and I didn't have the time to read enough pages from those topics.