it's not pinin'! it's passed on! this forum is no more! it has ceased to be! it's expired and gone to meet its maker! it's a stiff! bereft of life, it rests in peace! it's pushing up the daisies! its metabolic processes are now 'istory! it's off the twig! it's kicked the bucket, it's shuffled off this mortal coil, run down the curtain and joined the bleedin' choir invisible!! THIS IS AN EX-FORUM!!
(apologies to Monty Python, and especially to Anu)
but why stop there? <pages through thesaurus> amort, anabiotic, antemortem, asleep, at death's door, at peace, at the last gasp, at the point of death, booked, burial, buried, cinerary, commorient, condemned, dead, dead and gone, dead as a doornail, deadly, deceased, defunct, defunctive, demised, departed, departed this life, dying, eclipsed, eighty, elegiac, encharnelled, exanimate, extinct, fey, funebrial, funerary, funereal, gathered to one's fathers, given over, going, going off, gone, hippocratic, iced, in extremis, in the agony of death, in the jaws of death, inanimate, infernal, intestate, late, launched into eternity, lethal, lifeless, lost, moribund, morient, mortal, mortuary, mortuous, near one's end, no more, numbered with the dead, on one's deathbed, on one's last legs, out of the world, placeparted, post, posthumous, released, sepelible, smabbled, stillborn, taken off, terminal, testate, thanatoid, tottering on the brink of the grave, with one foot in the grave