I would imagine that any perpetrators would probably not feel uncomfortable on seeing billboards as they would believe that they are home free as Scotland Yard and the current PJ investigation haven't got anywhere IMO.
But Brietta what about the innocent local shop and pub keepers and their workers who's livelihoods rely on tourism in the village. Any thoughts for them and how they would feel?
From the same Guardian article (April 2009):
"It is unclear how far the company's profits were hit by the affair. Its latest accounts show that it made a loss of £2.8m in the year up to October 2007, on a turnover of £46m. It blamed the loss in part to Madeleine's disappearance, saying: "The results for the year reflect the difficult trading conditions experienced by certain parts of the tour operating industry."
Last year, Hopkins told Travel Trade Gazette that the number of parents choosing to go to its resort in Portugal declined immediately after Madeleine's disappearance, but business was "very buoyant" later in the summer of 2007."Although I find it understandable that families with young children may have cancelled in the months following her disappearance (and even couples without kids being put off by the media circus), I don't quite see the connection between her disappearance and the "difficult trading conditions experienced by certain parts of the tour operating industry".
The fact that in Jan 07, the Eur/GBP rate was around 0.65, but by Dec 2008 it was hovering close to par, IMO seems a more logical explanation of the "difficult trading conditions" for the industry beyond the immediate aftermath.
https://www.dailyfx.com/eur-gbpSecondly, even in the aftermath, while the OC may well have suffered from cancellations, the media swarm would have brought considerable custom to the village and environs.
I therefore question the extent to which a longer-term downturn in bookings (and therefore jobs) across the industry could be attributed to the "interrupted business" as a result of her disappearance, which was seemingly the object of the insurance claim, as opposed to the lousy exchange rate from a UK perspective.
In any case, although it created resentment, I doubt that defacing a poster of a missing little girl, including the number to ring, would have made the village appear particularly welcoming either.