Posting Images with limits
This "bug" exists probably since forever.
Set limits to image width or height, then try creating a post with this code:
[IMG]http://stream1.gifsoup.com/view/294143/scared-o.gif[/IMG]
Here on that server I get a 404 because probably the server times out (or something like that).
Obviously the problem is that Elk tries to determine the size of the image, but because it is rather big, it fails and php gives up.
Alternative solutions?
CSS looks the best: a max-width and a max-height set in html_headers should do the trick pretty well without forcing php to download tons of stuff. This would also eliminate the oddity to have different max-sizes depending on settings changed over the time.