Everybody talks about the John J. Harvey, and quite a few of them are doing something about it. The chipping, scraping, and painting you'd expect a 74-year-old fireboat to require has proceeded since the vessel became privately owned in 1999, but that's only the beginning of the discussion. For within the city the fireboat served for its first sixty years, a peculiar love/hate seems to have developed toward the harbor. That, more than leaks, can influence the future of the most historic of vessels, even as it affects contemporary ones doing their daily chores. The John J. Harvey was built for these waters in 1931, launched into them by the Todd shipyards at Brooklyn and serving them steadily, reliably, even heroically.