"After all, technology exists to get a reply from 95% of the population just by putting the form on the internet..."

Where on earth did Steaming Willie pick up the notion that 95% of people, or anywhere near that, use the internet? (In fact perhaps 60% of UK people use the Internet regularly.)

Even aside from the fact that there'd inevitably be all kind of daft stuff with people making multiple and false entries for the "fun" of it.