For example:
meusite.com.br/posts/isto-e-um-slug-de-um-post
instead of
meusite.com.br/posts/295837
In the first case, the URL is much more user friendly, but there is a cost of time to develop and maintain something like this.
My question is whether it is worth investing time in something like that, which the user may not even notice.
The friendly URL is important in these cases:
Not only the URL in the browser tab as long as the user browses, but if he favors the page, share it with his colleagues through messages, they will know what it is about before even opening the page.
It is more likely that a search engine will find the page post using the URL as a reference. Example: when searching for stackoverflow, search engines quickly identify the URL in question, when searching for a question (which you know exists on this site), you will quickly find the title that is defined in both the URL and the tag and also how h1 (you can see on this page for example), is an additional and important reference.
The experienced user reviews the link before clicking it. Note that you've even been insecure with shortened links like " link ". When you view a title or something of the genre, your confidence increases: link
You can have more protection, because you will not be leaving your exposed files of type: 'www.examplecompany.com.br/produtos.php?id=32', that necessarily a search for better use of the user and for the distribution of information you will have to pass the parameters by "GET".
Some points that I consider important and relevant to the use of friendly url
Search engine engines treat dynamic (my-page.php? post = 1234) other than static url (my-page / post / url-friendly) , so it can help improve page ranking.
When reading a friendly url (stackoverflow / how-to-use-url-friendly) the user already knows what they will find on the landing page before they even click, (stackoverflow / 21943) , but note that in this case, to facilitate implementation you can use (stackoverflow / 21943 / how-worthy-and-use-url-friendly)
Users can more easily store a url (my-page / tag / product) than (my-page / 1234/3887929) , in which case a become a url (sports / world cup-2014 / round-goals) , this makes it easier for the user to get directly to the desired page and still understand the content of the landing page. p>
A friendly url becomes easier to be spread by phone, banner, folder, card and etc ...