ok, i'll bite.
first your assertion of truth is untruthful. it is but an opinion, and in this case, i am confident that someone owns a speaker whose frequency response favors the lower treble and would be considered bright.
the fact that you have not received any responses could mean that you are just kidding, or generalizations are generally incorrect, or while your assertions are true in some cases they are not in others.
in any case, what is the pirpose of your statements ?
are you trying to be delberately provocative ?