Originally Posted by
Sixth Freedom
A long time ago I noted that ba.com does not really appear to exist as a website other than to direct users to britishairways.com.
So why does BA use britishairways.com and not ba.com?

How about because it is the name of the airline? Other airlines do the same (eg: united.com, cathaypacific.com, airfrance.com rather than ua.com, cx.com, af.com).