Bad reasons for a PPR are
- airport operator wants to "brief" you on procedures (Put them in the AIP or on your website, you cretin !)
I ask "is there anything else I need to know that I didn't find when I read Pooleys, the AIP and your web site?".
The answer is sometimes along the lines of "that's fine, see you later, the PPR is so that we can brief the people who can't be arsed to read any of those".