Considering how a large part of kirupa.com and the forums is about Flash, it’s a bit odd that you cannot attach SWF files to forum posts, though I’m sure there is a perfectly logical reason behind this. Care to elaborate?
Of course, it would be just as easy wrapping the SWF in a ZIP file and uploading that, but it would still be quite handy having the SWF file “pop up” like images do when they are in attachments.