I've also given up on them.
I mainly flew EDI-LCY, which is supposedly to become a route for "BA Cityflyer" rather than flybe. So in theory I should be unaffected by the takeover. But in practice there have been a few delays at EDI caused by (justifiably) grumpy EDI groundstaff who were about to lose their jobs as a consequence of the takeover.
Also, having written complaining about BA's neglect of anyone who's unable or unwilling to fly through Heathrow both to the Exec Club (i'm a gold member) and the boss himself and had no reply, I'd prefer not to spend any money (even if it's someone else's) with BA any more.
For EDI -LON I take the train now and for international travel there are plenty of other (non BA, non Heathrow) options.
13Alpha