Pasting a listing onto a job card now checks it's the right job. If the page doesn't name the card's company or most of its title, nothing is saved yet: the card explains what's missing and the button becomes "Save anyway", because some pages really do leave one out.
Tested against every saved paste. It flagged about 3% of the right ones and caught nearly all of the deliberately mismatched pairs.
One job board's "Similar Jobs" section was being read as part of the listing, so a card could pick up another job's pay. Pasted pages now stop at that heading, whichever way it's capitalized.
Job Scout