Playlists and song segments
The new blink-182 song Dance with Me is extremely catchy, but it can't really be added to playlists or played at the gym, for example, because of the sexual joke at the beginning of the track. Individual sensibilities differ, but I wouldn't want to play it in polite company.
I've encountered this problem before, usually with bonus tracks that play after several minutes of silence. They can be great songs, but there's no great way to add them to playlists. Technical solutions exist (it wouldn't be hard for an app to apply a time offset), but they may not be worth the added user interface complexity. Perhaps the easiest solution would be for publishers to release alternate cuts more often. Let's get a version of Dance with Me without the joke. Let's get Maybe I'm Just Tired without the silence and the track that come after it.