As crowbar explained in post #2, our servers lost a lot of listing suggestions in late 2006. If you suggested it again as he advised, we'd be talking under 2 years, not 6.I submit my web site in dmoz 6 years back
The FAQ at the top of every page of this forum also addresses your concerns, and the suggestion instructions (which you acknowledge having read) also explain the consequences of excessively repeated suggestions.Some volunteer will process your listing suggestion in time but we can't predict who or when that might be. Elapsed times can range from a few days to a few years. There is no need to re-suggest your website and doing so could be counter-productive because a later suggestion overwrites any earlier one.