Firstly I'd like to thank Bobcat for post 785 above..Bobcat, in your own words, agreed!!
With regards to taste, taste is a subjective concept and good or bad taste depends entirely on the viewer's preferences/prejudices. With regards to bad taste therefore, I don't believe there is such a thing in the broader sense. There is only what the individual or the group perceives as bad taste, as previously stated. Certainly there are things that I consider to be in bad taste, but others who like them obviously don't agree. And as I haven't been elected the sole arbiter of good taste on the planet (much as I might wish otherwise!) I guess they are probably as right as I am, as difficult as it may be to accept. Who am I to judge? I feel everybody should understand that the world is not just as we see it as individuals. It saddens me when people think their way is the only way; I'm sure most of us are aware where that can lead. Certainly at the least towards anti-creativity, and music should surely be about creativity first and foremost.
In addition, music is an indeterminate artform. It should no more be solely about "songs" than painting should be about solely representing life. Heard of Expressionism? Cubism? They are perfectly valid art forms, but are not the "pretty chocolate box pictures" that many would say is art. Art should never solely be about "pretty pictures", although there is a place for those too. Art, whether music, painting, or any other form, is a means of expression, and should be treated as such. I have argued this ad infinitum, and will doubtless continue to do so as long as I am able. Some strive to reach something deeper, and they should be allowed to do so by whatever method they choose; through them we discover more about ourselves and the world. If prog is "rubbish", what about jazz, which is arguably as advanced a form of musical expression as there is? What about Stravinsky or Mozart or Beethoven, or a million others? There is certainly a place for "well crafted songs" (whatever they are; I'm sure every individual would have different ideas about what constitutes a "well crafted song") in the world, but to imply that that is all there is room for seems narrow minded in the extreme. Personally I love all types of music. There are individual pieces of music or particular artists that I may not really care for, but how can one type of music be inherently superior to another?
And in response to Jeff's comment re disco (and thanks Jeff for lightening the mood, as earnest as the opinion may be!), I love Chic and Bernard Edwards...and indeed the Bee Gees! Bad taste? No, just MY taste....