Obfuscating ids in urls is a great way of hiding your application's internals from your visitors. It reduces the chance for malicious users to guess urls and prevents everyone from knowing how many user accounts or articles your website has.

Jens Segers introduces the hashids library and proposes a very nice way on how to use it in Laravel 5.

http://jenssegers.be/blog/64/easy-id-obfuscation-with-laravel-5