well I browsed it from time to time, but it was really strange board with strange people...anyway perhaps it was closed because of stupid posters like the in flames and anathema board...
The Opeth's forum was the best in the old times, even though it was a piece of crap in the last times, that's why the good regulars (Oyo, Lina, Metalmancpa, Arch, S4R, Misathrope) went away a long time ago.