Interesting how the big cat stories pop up again and again. Most, probably have straight forward explanation. The increase in oversized crossbred fancy cats may be responsible for some sightings. Many of the pic's of sheep killed by cats look exactly like ewe's eaten by badgers to me.
People query how with all the lamping these "big cats" are not seen more often? lamping ground for foxes only shows you the ones that look at you, brock with us don't look much at all, and usually barrel off on there own business. You would think thermal may increase any sightings if cats were about. Our local village has badgers, otters pine martens and the occasional beaver plodding through it but 99% of residents would not be aware of this or believe you if you told them.
I suspect many of us , if they saw a big cat, while out lamping, would flatten it and stay shtum. I don't see any advantage to publicising a sighting , you will either be thought of as a crank or liar , better to know what you know and keep it to yourself.