BB-codes are one of the informal standards of text formatting, without the usage of HTML tags. We have replaced HTML tags by BB-codes for the purposes of safety, as by means of using HTML tags a dishonest user can spoil the appearance of your pages, receive important information stored in cookie files of your site visitors, and do other unpleasant actions. Unless im an idiot it sounds like u cant use certain file types,that this site does not allow for safetly purposes