Because this feature could be easily abused by flamers, spammers, and in heated debates. A disgruntled member could also delete their posts making threads appear irrelevant and confusing.
Okay, you know how when someone attaches an image, it'll say above the attachment "{username} as attached this image:"? Well, sometimes it's kind of annoying, not to mention it's rather obvious that that person attached the image, since it's in their post. However, I do see why it's needed... so that people don't mistake it for an image placed there using the image code tags. So, my suggestion is this: Instead of putting that text above each image, how about a paper clip to represent an attachment? I've photoshopped what such a scenario might look like (though if you do decide to implement this idea, you might want to use a bigger paper clip)
Okay, you know how when someone attaches an image, it'll say above the attachment "{username} as attached this image:"? Well, sometimes it's kind of annoying, not to mention it's rather obvious that that person attached the image, since it's in their post. However, I do see why it's needed... so that people don't mistake it for an image placed there using the image code tags. So, my suggestion is this: Instead of putting that text above each image, how about a paper clip to represent an attachment? I've photoshopped what such a scenario might look like (though if you do decide to implement this idea, you might want to use a bigger paper clip)
[edit]: Well, actually, one of the main reasons I liked the idea is simply because it would be kind of cool... no other forum would have it. And, of course, it's more aesthetically pleasing.)