If you’re a blogger with a decent readership and a prominent search engine ranking, you’ve probably encountered someone like me. Someone who sends you emails asking you to write something nice about one of my clients.
If you’ve got a huge readership you probably get a truck load of these requests.
PRs already have access to huge databases (formal and informal) of pretty much all the media in their country/market that could write about the client. Most of them have to speak with the media and have good relationships with them as well.
Why would they want or need to go to the trouble of finding a blog like yours, reading it for an hour or so, finding your contact details and then “pitching you” on their client?