CIV tickets are only for travellers who are using Eurostar via St Pancras International, they don't cover any ferry journeys.

For travel via Harwich International and Hoek van Holland, you're thinking of SailRail, which is only available between any Greater Anglia station and any station in the Netherlands.

Yes, CIV^▸ (International Convention for the transportation of Passengers) tickets are saleable on board via the guard's TTK Avocet^▸ (Branch line from Exeter to Exmouth) machine.  They'll need to search for destination London International (CRS code LNE).

From Melksham to London International with SNR railcard:

Euro High Saver single any Permitted £40.25 via Swindon £35.70
EHS Return any Permitted £66.90 via Swindon £61.05
EHS Anytime return any Permitted £159.45 via Swindon £139.30
EHS Anytime 1st return any Permitted £209.85 via Swindon £232.80 (yes it is dearer on the more restricted route!)

By rights, they should be issued to ToD for collection at Paddington or Swindon, but PRT and e ticket are also shown as available.

As CIV ticket have no time restrictions, I see no advantage to buying an Anytime version.

All return tickets have a1 day out, 2 month back validity. Singles are all 2 month validity.

You have to be able to prove you hold an international ticket to purchase a CIV^▸ (International Convention for the transportation of Passengers) fare, so these can only be done in person, not online.

The Tim Traveller has done a Youtube video on this.

As I've posted on here before, Groupsave tickets have a restriction code (RV):
not valid 0001 - 0929 on any TOC^▸ (Train Operating Company)▸
not valid any time on EMR^» (East Midlands Railway, also known as EMT^» (East Midlands Trains - about) (East Midlands Trains) - about)» (East Midlands Trains) - about), GCR^» (Gloucester - next trains)» , LNER^» (London North Eastern Railway - about)» , Hull Trains, Merseyrail, Northern, Scotrail, TPE^▸ (Trans Pennine Express)▸ , Avanti West Coast, Crosscountry, TfW, London Underground, Lumo, Caledonian Sleeper or Night Riviera
not valid for travel to/from Heathrow and London CIV^▸ (International Convention for the transportation of Passengers)▸
not valid to depart Paddington at 1404/1504/1604/1704/1804 except for travel to/beyond Exeter St Davids (Fridays Only)

Most likely not, a XC^▸ (Cross Country Trains (franchise)) spokesperson states that as fewer people are traveling, there needs to be fewer trains. 
As will become even more common, the railway are sweating the assets.

The AAA surcharge for Accompanied Animals and Articles was only recently (2018) abolished as no one was using it.  So when you could have been charged for extras, you weren't.

New strike dates announced


TOC^▸ (Train Operating Company) staff

 0001 hours and 2359 hours on Thursday 16th March 2023
 0001 hours and 2359 hours on Saturday 18th March 2023
 0001 hours and 2359 hours on Thursday 30th March 2023
 0001 hours and 2359 hours on Saturday 1st April 2023

Signallers

Strike: 0001 hours and 2359 hours on Thursday 16th March 2023
Overtime Ban: 0001 Hours on Sunday 26th March 2023 and 2359 Hours on Saturday 1st April 2023 / 0001 Hours on Sunday 9th April 2023 and 2359 Hours on Saturday 15th April 2023 / 0001 Hours on Sunday 23rd April 2023 and 2359 Hours on Saturday 29th April 2023

It is poor wording, as further up the article, the aim is stated: "they have stopped fare evaders from being able to ‘screenshot and share’ season tickets for others to use", ie stopping 1 person buying a season and then sharing that day's code with others to be used multiple times.

Unlike other tickets, seasons are not transferrable, they're supposed to be linked with some form of ID - a photocard only obtainable from a ticket office after purchase of a passport sized photo. This is what Mark Powles should be talking about.

With e-seasons (and frankly, the same with weekly seasons bought via a TVM^▸ (Ticket Vending Machine)), there is no check at time of purchase that the holder has one of these photocards.  What the railways should be doing is 1. making this fact more obvious when purchasing and 2. allowing other forms of ID.

Unfortunately a body has been found on the line in Plymouth in suspicous circumstances.

The full proposals by the RDG^‡(resolve) have been published by the RMT^▸ (National Union of Rail, Maritime & Transport Workers) on their website.

See the 4 pdfs: RDG General Grades proposals, RDG General Grades, Drivers pay and workforce reform proposal and Drivers letter from RDG.

If you read the RMT^▸ (National Union of Rail, Maritime & Transport Workers) website, it's RMT train drivers that are striking at the same time as ASLEF^» (Associated Society of Locomotive Engineers and Firemen - about).  Currently a strike for 'other' grades has not been called.

There could be a very relevant recent reason for that.

It's not Liskeard due the railings outside the window; it's Menheniot.

So do forum members reckon that the DfT^» (Department for Transport - about)'s want for NR^» (Network Rail - home page) to modernise and reform will be more effective or less effective at reducing all these infrastructure problems?

It very much seems like we're sweating the assets again, and we know where that ended up last time.