If there are multiple listings for the same item, allow users to suggest a merge. For instance, currently there are two listings for the same GBA SP console. One is incorrectly listed as "black" and one as the Nintendo color "graphite." In addition to having the wrong name, the "black" one seems to pick up a lot of prices for other system colors since there is no actual black color. 

You have the Hori controller for the GameCube but not the N64.

Read the sold listings on a grey n64. Most of them are funtastic and things like bags, making a very inaccurate price thats obviously effecting ebay prices. Its like this for most consoles on pricecharting. I click edit to remove them and you dont remove. I try to edit and fix these consoles that include the wrong items but my edits dont go through or no ones checking them. Basically every console is like this, which drives up the price on the regular consoles. Since its combining prices from much more expensive colours or variants of the console. Other times it shows wii's in gamecubes, and 360's in OG xbox..

Hello!

The console "Action Max" has been available for a little bit, And last month I painstakingly added all (5) of the games for the system.

In which case, this console and its games are ready to be put in the 'Other" section publicly.

Is there an approval process to get this to show up?

They're almost always repros.  I would like the ability to filter out items marked as "new" on ebay.

The listing does exist! However, if you try to search for this title, or view the entire game list for PAL Nintendo Switch, the listing does not show. Found by accident when I searched and couldn't find the game, tried to add it as a new listing, got an error that it is already listed. 

Item details and db ID below if you'd be kind to check what's up with this one:

Pricecharting ID: 2380953

Killer Queen Black (PAL Nintendo Switch) Details

Does this exist already?

Please add the library of LaserActive games to be tracked.

It would be neat to be able to make the value of my collection private. Just a setting or something :)

Currently the graph displaying the value of your collection over time includes new additions to your collection as increases in value to your collection

My suggestion is to have an optional graph which shows the growth in value of your current collection over time, letting you see how much your current collection was worth x years ago as if you had always owned the collection.