The only reason they have to vet the candidates is because the media then goes Oh Look at Social media so and so is RACIST!
Time for the adults to grow up and get on with reforming the country.
Spending a hundred thousand pounds on some poofter dweeb firm that checks someone's Facebook page for dirty words is just money down a rathole.
Good example here for why you should never give money to a candidate, even a good one like Nigel.