Why, Gimp? WHY?!?!
One of the things that I've loved about Gimp is the fact that there was only one way to save a file. That was with the "Save" command. Adobe Photoshop requires that anything other than the saving of its proprietary Photoshop format requires the use of the "Export" command. I found that annoying as all get-out. I just want to save the bleepity-blanking file. Gimp only required using the "Save" command. The particular format, including its ".xcf" format, simply depended on the file extension used. Once it knew the format, it provided any settings required (compression for JPG, resolution and gamma for PNG, as examples), then it saved the file. I loved that!
I loaded Gimp 2.8 onto a Windows machine of mine, and used it to capture a screenshot. When I went to save the file, I used the normal "Save" command. But when I changed the extension from ".xcf" to ".jpg" and clicked "Save", I received a pop-up window that said, "GIMP Message. You can use this dialog to save to the GIMP XCF format. Use File -> Export to export to the other file formats."
In a word, NOOOOOOOOOOOOOOOOOOOOO!
Why, Gimp? Why? Look, I'm just one person and this puny website of mine is a pimple on the backend of the Internet, but I disagree with this philosophy. I found it annoying for Photoshop. I still find it annoying. And now you're mimicking that annoying behavior. Again, why? Were there people screaming, "But we want to have an unintuitive method for saving files! We like having confusing user interfaces!"?
I will continue to use Gimp. But I find this disappointing. Gimp kicks ass on its own accord. It doesn't have to mimick behaviors for other products. It stands fine on its own. Frankly, it should not have been Gimp following Photoshop; Photoshop should have followed you.