So what is: "the topic"?
The thread title is a statement that an aircraft went down on the South Coast on 7 July.
That statement has proved to be true.
Therefore the thread should now be locked because the statement is no longer a matter of debate?
If more discussion is permissible in this thread, what issues may be discussed?
Can someone open another thread titled: "Speculation on why the aircraft went down on the South Coast on 7 July"?
If yes, what's the point of worrying about speculation as to the causes of accidents and incidents, on pprune?