How Should We Report Not Properly Listed Items To Improve The Site?

How should we report not properly listed items to improve the site?

An example would be the elemental grips, Orca straps, and Shark straps. I don't know if it's because they are more recent than other items in the grip category, but they are in that category on the AH and are tracked by FFXIAH. For some reason though they are not 'registered' under the grips category. I come across this situation every now and then with other items as well and wonder if there's something easy the community can do to help report this to make the site better for everyone to find items.