So recently they've added some warps that allow you to warp to a mine rather than run into D block PvP & die instead. I've noticed that the only way to find out those warps are to do /warp.. And some people who are new don't know how to find the warps yet. Since D block is the only mine where people PvP (usually).. I think that when any player who's new joins the server, they get a little message on their screen that says "/warp d mine to get started".. (I have no idea if that's the correct warp or not) This could allow someone to keep their stuff and get to the mine safely. It would only be for new people who just joined. I think this would help all the new players who die right after they join.
I like your idea and support it, BUT i would also want signs saying "/warp Dmine" and so on. but like i said. Support!