The infringer -- who steals gags and points bodily -- can be pursued and punished under the copyright law, but the chooser is a kind of sneak thief who works gags and points around to escape taking criminal chances, making his material just enough different to evade the law.
The "chooser" in the old Mac platform used to be the kind of thing I could (and did) explain to my grandmother, but the OS X Print Center is a giant, non-intuitive pain the ass.
Now here's the way I once heard a 'chooser'  do it.
The first appearance of the hairetikos anthropos, the "chooser" of his own way rather than the common sense of the Church, is in Tit. iii.
Mobile WiFI Stumbler is "finer-grain" than the WiFI detecting and reporting displayed by the "chooser" applications on most WiFI-enabled devices, Biswas notes.