Dropbox's links are fine as long as they're direct download *click n' download*
Sometimes users upload it to MediaShare or MegaUpload for a 200kb file let's say. That alone is annoying , thus why we support "Attaching" to the forums by Zipping files and making iit small enough to attach it to the website.
If you want to use Dropbox to Direct-Download go right ahead, I use DropBox too sometimes

Still, a tutorial on "How To Zip Up and Attach to the Forums" will be appreciated
