::::This "poll," while doubtless entertaining to BBC audience in England, and perhaps of some interest, is not a conventional poll, and certainly no reputable polling organization would offer such results as a scientific measure of pubic sentiment

Further, it's presented as if it reflects a historical trend in public opinion  as if according to a scientific measurement, Scott's popularity had declined over a period of time. However, there are no comparable measures from previous years presented (presumably because there aren't any).

Had the BBC conducted a similar call-in program in 1955, '65, etc., perhaps Scott would have been more popular in earlier years. I bet in earlier years, he would have ranked much higher than Boy George, et alia, than during early 21 Century broadcast "poll".....

Am I at least partly stating a semi-plausible case for why this may be non-useful information?