Quote from: loquitus_of_borg on November 27, 2013, 02:56:15 AM

I have been building a service where I want incoming payments to always go to a certain well-advertised and known and unchanging address X.

This is _strongly_ discouraged. If you do this you will not be able to tell which of multiple parties concurrently paying you is paying you, you will degrade privacy for your own service and other users of Bitcoin as well. You may be subject to blocking by hostile parties, it's just generally a bad plan.

The account functionality is purely local bookkeeping like categories in a checkbook. It doesn't influence the transactions the system creates. It was created for a particular niche usecase (shared webwallets) and it's not even particularly useful for that case. It's generally discouraged to use accounts for anything important.