I've already over 20k nTP, all on F/J, most of that booked before the changes, all personal travel.

Under BAEC, I'd probably have carried on preferring BA and maybe hit GGL again, but it's not something I've ever 'chased', the benefits for me aren't that interesting, under BAC I certainly won't bother. BAH isn't interesting due to limited choice and loss of hotel benefits.

The changes have probably reduced my spend on BA by at least 20k for the rest of this BAC year, BA gives me no incremental benefit to choose them.

All other booked/planned travel so far is non-BA, I'm VS Gold, so Skyteam Elite Plus benefits are all available when I use DL/AF/KLM/etc., but in F/J it makes little difference which carrier I use. Lots of Avios to burn, probably I'll do some reward flights.

At the moment I'm BAC Gold until 2027 and will presumably soft land to Silver until 2028. That's a lot of time to see if BA does anything to make BAC more attractive to me, or decide if I hop to IB/whoever to stay OWE.