Well, I had the same experience: my REI sub-kilo bag isn't on there, nor is my home-made tent. And I suspect that most of the other stuff I have needs to be adapted and adjusted.

Which means that this is a really massive site, but it doesn't actually serve my needs, because it doesn't address my equipment. And if that is the case for most of the people on these boards, I wonder who your target audience is?

It may be so much more than a spreadsheet, but it doesn't do the work my spreadsheet does for my equipment.