Back to the thread's original topic...
Back in the mid 90s, on KHMX (Mix 96.5) in Houston, when they had a show called "70s Saturday Night", a listener called in and requested "Make It With You" by Bread. The show's host, Paul Christy, refused to play the song, and came right out and said he wouldn't play it because he hated it! He then played an audio clip of some people shouting, "WUSS! WUSS! WUSS!" afterward. No Bread song was ever played on "70s Saturday Night" during the show's entire run. Of course, the show focused primarily on disco, though they did play some 70s rock and pop songs. (Surprisingly, when Paul Christy went to KLDE Oldies 107.5 in the early 2000s, I think I did hear "Make It With You" during his shift at least once, but this time he kept his opinion of the song to himself.)
Back in the early 90s, on Satellite Music Networks' "Star Station" adult contemporary format, on their "Saturday Oldies Show", host Bud Buschardt on a couple of occasions gave a listener a hard time when they called in and requested "Disco Duck." One time he asked "Are you sure?", and another time he asked "Why!?!" Nevertheless, he still played the song.
More recently, on WRTH (103.3 Earth FM) in upstate South Carolina, morning host Bill Love expressed his displeasure with "Ice Ice Baby" by Vanilla Ice, particularly the "Word to your mother" line near the end of the song, I think he said he thought it was disrespectful.