I'm going to ruin someone's chips again
The LAT/LONG info that NotamPlot requires used to be input by hand.
To cut costs, NATS no longer do this where there is an ICAO code or name of area (danger areas activated by NOTAM etc.)
Obviously the web-redesign was free
Because the state of origin -- UK (NATS) in this case -- provide the NOTAM info to other AIS agencies it won't be there either.
Draw your own conclusions.
editied because I forgot to mention the ICAO and DA bit.