Personally, I find this excrutiatingly frustrating and a terrible waste of time, not to mentoin something that takes away from the experience of the game (not my experience necessarially, but experience nonetheless).
Being said, I think that ArenaNet should put a penalty up against people who map out early that works in this fashion...
If the character has 0 to 500 gold - 25% of gold
If the character has 500 to 1000 gold - 20% of gold
If the character has 1 plat to 5 plat - 15% of gold
If the character has more than 5 plat - 1 plat for every five
OR (make it like a lottery)
20 percent of current allegiance faction
I think something like this would persuade people to only enter if they are serious about entering.
If you agree, "sign" this petition.
THIS NEEDS TO STOP

It's not like that the whole thing takes a long time, how much time are they really saving by jetting early! I think the neg faction banning is an awesome idea...