That's not true. It's an entry in a database. That means it has to be indexed for search, and counted for "all pages where..." types of queries. It has to be replicated between database shards. You scale up your number of records, and you start hitting database, application, and operating system limits.
That's not true. It's an entry in a database. That means it has to be indexed for search, and counted for "all pages where..." types of queries. It has to be replicated between database shards. You scale up your number of records, and you start hitting database, application, and operating system limits.