There is a serious issue in this thread about information provision. The need for the 'headlines' to be easily understood and compete for the very rail-unaware, yet with a layer of icing on that cake for the railnerds to provide useful data for [us].
I agree with the first bit of your sentence but not necessarily with the second. I don't think there is any need for announcements to be tailored to "railnerds" at all, because we all have our own ways of finding out what is going on, be it modern mobile wi-fi as Realtime Trains and other railway-related sites get checked, or the old fashioned ways (although many are not as easy as they used to be given the demise of droplights) such as looking out for signal aspects ourselves, or spotting "C" and "T" boards as we passed them, or noticing an unusually heavy brake application when we felt one. I also feel that announcing too much technical information (term used loosely to encompass all things of enthusiast interest only) may only serve to further confuse the ordinary passenger.
My personal gripes are intercom systems where one or more
PA▸ handsets aren't working properly leading to inaudible announcements, and automated systems that tell lies. I shall now expand on that statement
I have come across quite a few cases in the last year or so when I have been unable to decipher what is being said over the intercom, and I have brought it to the attention of passing train managers and catering staff whilst on the train. Sometimes I have been met with disbelief (such as a guy pushing a trolley through an 800 last Sunday who clearly had no problem in projecting his voice) and I have to tell them that whilst my eyesight is failing my ears are as good as they have ever been. Unfortunately the staff making the announcements cannot hear themselves through the intercom and so simply will not know that they are using a dodgy handset unless someone tells them. And it is beginning to become apparent that maintenance and testing of these devices is not being carried to a high enough standard at the depot. I have to say that I have only found this problem on
GWR▸ and
XC▸ trains but that is not to say that they don't exist elsewhere, just that I haven't observed any instances.
As regards automated systems that tell lies, the ones on the GWR 800s appear in my experience to be the worst, closely followed by HEX that often just seem to display algebraic calculations rather then words... Once upon a time I was on an 800 from Chippenham to Bristol and, on just coming out of the western portal of Box Mill Lane tunnel, the automated announcement and the display in the coach told us that this train was bound for Paddington and the next stop would be Reading. I just wondered how many passengers who got on at Swindon or Chippenham were now having kittens because they thought they were on the wrong train. Another example was again last Sunday when travelling from Padington to Chippenham, when the automated display in the coach got stuck at "We are now approaching Swindon" and was still saying so as I got off 17 miles later.
Conversely on the other side of the coin, a couple of years ago I was on a Swansea to Paddington during an engineering occupation, diverted after a Swindon reversal via Melksham and the Berks & Hants. The train manager almost took on the role of a tour guide, explaining why we would be going more slowly than usual on the single line beyond Chippenham, pointing out the Westbury White Horse as we passed and also the Kennet & Avon canal around Bedwyn. I somehow doubt he was tested for that during route learning!