Danbooru is not the place for text and html hosting, though they sometimes (usually accidently) get uploaded and then flagged for deletion (e.g. post #169663, and post #169660). Why don't we have a feature where the upload script checks the file extension against a blacklist of bad extensions and throw up a friendly error in that case.
It would benefit both the user uploading (since they would know something was wrong, be able to fix it, and not have to deal with extra deleted files on their record), and the users browsing, since nobody really wants random text files in their search results. We could also add uncompressed bitmaps to the list since those are also typically frowned upon with a message telling them that they can convert the BMP to PNG and re-upload if they like.
Is this a good idea?
Updated by LaC