No More Unsubstantial Threads
If a thread has a weak or dumb subject manner, or is just a random thought with seemly no reason, it will be closed. If a moderator doesn't think a thread has enough depth, it will be closed. If a moderator thinks a thread should not be open, it will be closed. This includes topics that have been done to death. Usually the moderator who closed the thread will leave a closing remark and you can PM the moderator if you have any questions or concerns about the decision. With that said, remember sometimes the reason a thread gets closed is self-explanatory if it is blatantly worthless.
We encourage the moderators to leave a closing post when they lock a thread so the thread creator can contact them through PM but that doesn't always happen. As to why your topic was locked could be any one of the reasons above.