As you may know, HMRC was formed from the Inland Revenue (IR) and Customs and Excise (HMCE). So, there was lots of work to do rebranding their web site contents. Unfortunately, it didn't all go quite to plan, as you can see (at the time of writing) on this page:
http://www.hmrc.gov.uk/about/cip.htm
I also include a (doctored so you can see more at a glance) screen shot, in case they realise the mistake:
As anyone will realise upon reflection, "ir" is quite a common combination of letters in English, so a blanket "find 'ir' and replace with 'HMRC'" is unlikely to be very productive: but that's what they did! So, we have these interesting phrases to decode:
ExpHMRCy Date
E-HMRCOS/Computacenter
The Institute of Internal Audits UK and HMRCeland
Car HHMRCe
Coach & Driver HHMRCe
ShHMRCley Hutton
Evacuation ChaHMRC Maintenance
FHMRCearms and Explosives Training Regularisation
FHMRCst Aid Training Services
Citizens Advice Bureau, Northern HMRCeland
Lorry and Driver HHMRCe
DHMRCect Solutions International (DSI)
Cega AHMRC Ambulance Ltd
Office Machinery RepaHMRC
Rowan Corporate Location, Trading as SHMRCva Relocation
HMRCon Mountain
Turner VHMRCr & Co
Telephone DHMRCectory Advertising
Training & Conference Room RequHMRCements
FHMRCst Option Hotel Reservations
Even a little intelligence applied to this would have helped: making the search case-sensitive and only looking for whole words. So would the use of a spellchecker.
Moral: Search and replace can be a very powerful tool used with discrimination, but a blunt instrument otherwise.
(My thanks to fellow ISTC member Alison Peck of Clearly Stated for drawing this to my attention.)