Here's how I'd like this StackExchange feature to work (noted here as suggested by @bmike, since the question is now tagged as a bug):
- Start writing a question or answer on StackExchange in Safari on OS X.
- Use cmd-shift-ctrl-4 to take a screenshot and put it into the clipboard.
- Press the Image button at the top of the StackExchange editor window.
- Press cmd-v to paste the screenshot from the clipboard into the editor.
Expected: the screenshot appears in the editor, as it would if I'd saved it to a file and then dragged it in. This is what happens in the Chrome browser.
Actual: at step 4, the Safari Edit > Paste menu option is greyed out, and Safari beeps.
I don't know if this is a Safari or a StackExchange issue, but I would find this process a little quicker and more satisfying than saving a file to local disk before uploading.