No, they’re a lot bigger (although some are partially buried) - spoilers for Depths locations and items in this link
No,
spoiler
Bargainer statues are located in the Depths. There is one in Lookout Landing that will show you the location of other ones. Their inventory increases the more statues you find (total of 6 I think)
spoiler
You can turn them in to Bargainer statues for special gear, including Depths gear which protects you from Gloom
There is a text box just under the post with a "Post" button, at least for me:
My favorite analogy is email- it doesn’t matter if you have @gmail, @outlook, or even disgusting ones like @yahoo or @hotmail, you can send and receive emails using the same protocols between any of them.