The principle of Bookcrossing is that a book gathering dust on your shelf is not doing much. If you have already read it, you are unlikely to read it again so Set it Free and you can follow its progress.
The setting it free is generally easy – ‘controlled’ by sending/giving to friends, or, ‘wild’ where it can be left somewhere (a pub, a coffee shop, etc).
Last year, I received 24 copies of Misery to give away.
The vast majority of the recipients of the books did not register receipt on Bookcrossing. Of those who did, only one was registered as received by the next recipient.
The following its progress is where the Bookcrossing principle falls down as it is dependent upon humans. It supposes that the person who ‘catches’ the book that has been released will record that they caught it, give their opinion on the book, and state where they have released it on the rest of its journey.
That’s human ‘nature’ for you………