The forum has changed over the years in that originally it was populated mostly by people who had been into the Turbo for over a decade, or since its heydey. Some of those people are still around, but nowadays there seems to be a high turnover of people with a passing interest in the console due, I'm guessing, to the exposure via the Virtual Console.
One awful side effect of this has been a large influx of people over the past few years whose single goal is to amass an "instant collection" at any cost. These people then grow tired of their collection a month or two later, sell it off, and disappear back into the Internet.