'Lord Sargeras, sweep your molten fist through this world, so that it may be reborn in flames and darkness!'
'So the light's vaunted justice has finally arrived.'
'Boldly said. But I remain...unconvinced.' My Warrior
It shouldn't have been happening at all until yesterday; if you're seeing last posts later than that either your browser is caching the search page (unlikely) or they just haven't posted recently.. It does usually take about 5 minutes to index posts, but that's all.
Update on status -- the index is updated to about 13 hours ago; db people are fixing the rest now.