S3 allows you to include a maxfile size param in your upload signature, so it should be easy enough for this to be fixed. However, you still have to be careful,

S3 allows you to include a maxfile size param in your upload signature, so it should be easy enough for this to be fixed. However, you still have to be careful, as someone uploading 100 10MB files is just as bad as 1 1000MB file.