Hosting images of that size, particularly by a non-commercial, no visible means of support entity is a big ask. Speaking only as a member of the community, with no official capacity, options open to you include applying a higher level of jpg compression — which may introduce some artifacts — or to host the images yourself or on another service and linking to them.
Personally, I downsize my images to fit within a 1600x1000 “box” for display on most monitors and don’t worry so much about individual pixels — but that’s me, and it’s not appropriate for all purposes or conversations.
For what it's worth, the EXIF data exists on the images uploaded to the server and is readily accessible. [Space reserved for when I find the best "how to" link]
Edit to add: I just looked at your image of the green-eyed cat. Something in your workflow is stripping the EXIF data — it’s not present in your image.