Hmm... actually I really don't like that style, to be honest. A major side effect of being able to post swf's as replies is that the board essentially turns into an unbrowsable filedump, so the individual files are less "discoverable", and there's little to no quality control in what gets posted. Plus if people want to post tons of files, there's always rapidshare: case in point, the Touhou archive which was posted a while back.

Of course, the disadvantage of the current layout is it's a bit harder to follow threads, since there's no way to read the recent activity without opening each one individually (or by watching the rss feed).