[Dainton]

I remember toying around with this a while back and the only way that I was able to get it to work was to force it to wait and then loot the item. This is what I use to loot BoP items while solo.

local g = CreateFrame("Frame")
g:RegisterEvent("LOOT_BIND_CONFIRM")
g:SetScript("OnEvent", function(self, event, id)
	if GetNumRaidMembers() == 0 and GetNumPartyMembers() == 0 then
		local elapsed = 0
		self:SetScript("OnUpdate", function(self, elap)
			elapsed = elapsed + elap
			if elapsed < 0.2 then
				StaticPopup_Hide("LOOT_BIND")
				return
			end
			elapsed = 0
			ConfirmLootSlot(id)
		end)
	end
end)

I don't know if this is the most efficient method, but it does work.