Originally Posted by
LondonElite
You may very well get tags, but these tags do nothing to speed up the delivery of the bags since there is no priority service offered. It is possible that they have a placebo effect, however.
Indeed. Tags or no tags, BA explicitly does not offer priority baggage handling (apart from the recently started first bags from 4 routes in to LHR).
https://www.oneworld.com/ffp/oneworld-benefits
**Priority baggage handling is not currently available on flights operated by British Airways.