I like the tag and I can certainly see the use; I may well start applying that to my characters. That said I'm reluctant to<em>demand</em>people use it; as long as it's clear where people are(and possibly when) I'm happy.<br/><br/>With regards to time I'll generally set it, although as-and-when the story requires it to be adjusted I'm fairly happy for others to do it. As for the technical side I'm intending it to be roughly linear (i.e posts describe what's happening at a given time) but again, as-and-when the story requires there can be some elements of "fuzzy time"(i.e. posts relate to different time periods), as long as its clear and not confusing.