Hi Peter. The forum had/s some issues which are being worked on, those links used to work until a while ago, hopefully they will again soon.
You can add requirements to your gig, so your buyer will see what you need from them, when they order your gig. It´s especially beneficial that you can make requirements either optional (e.g. ‘Tell me what you want me to consider for this job’) or mandatory (e.g. ‘Attach your file here’). You woudn´t believe it, but there are people who´ll order a proofreading gig for instance, without giving you any text to proofread and if you don´t have that as a requirement, the clock will start to tick as soon as they´ve ordered, without you being able to do the work, and if it´s a short deadline, it might get difficult, especially, if there´s a big timezone difference and/or your buyer might not reply soon.
That said, there are people who have a problem with understanding that they have to fulfill your requirements, to really activate their order, and you might have to explain it to them (for example, if you reply to a post on the Buyers Request section, sometimes people already attach their file there, and then think, as you have it already, all is clear and good and won´t attach the same file again on your gig requirement page, or some will attach it in an inbox message instead, so it´s a bit of a double edged sword.
But at least if you have (a) mandatory requirement(s) the time won´t start to tick against you, until they submitted whatever your mandatory requirements are.
You can set all kinds of requirements you can choose (attach file, free text box, multiple choice questions) either to optional or mandatory.