On Nov 8, 7:11*pm, Paul Corfield wrote:

Note that only half the service on M-F (not evenings) extends beyond
Hackney Central to Clapton Pond. *This is a break with the more usual
"all buses run end to end" approach to TfL services although there have
always been exceptions (186, 221).

Would the 73 not be a fairly high-profile example of this?

It barely seems worthwhile terminating at Hackney Central. It's only
cutting a mile from the route, and won't do anything to reduce
congestion on the Narrowway, as the empty buses will still presumably
run around Amhurst Road to get to the starting point outside the old
Town Hall.