I'm currently working for a very large helicopter operating company who must buy well in excess of 5000 airline tickets per year. (At a guess, I would estimate that 20% of these were BA).
We have now been told that when applying for tickets, BA are no longer to be used due to the possible problems, and this will continue even when the strike is over.
I'm sure that there must be many businesses who will do the same, as well as many private individuals.
You can only screw your customers so many times, and IMO, BA will get what it deserves from this latest folly.