For instance, real life troubles, more interesting (to the author) stories, or writer's block, in which case asking for more would likely be unwelcome.
I think the politic way is just to mention how much you liked the part that's written and ask for more, pretty-please-if-it-won't-inconvenience-the-author.
But you might get flamed--if the author has been asked a hundreds of times "When are you going to write more?!", anyone might get testy. And in the HP fandom, it could well be hundreds.
About MoM, from the group's FAQ, which seems a pointed way of asking readers not to nag the author:
When will the new chapter of MoM come out? It'll come out when Midnight Blue is done writing it, all we can do is wait and see :). We at this ML are generally very protective of Midnight Blue, and if some members feel another is pushing her to hurry up, it could get nasty...
if the WIP is stalled, there's probably more than one reason
I think the politic way is just to mention how much you liked the part that's written and ask for more, pretty-please-if-it-won't-inconvenience-the-author.
But you might get flamed--if the author has been asked a hundreds of times "When are you going to write more?!", anyone might get testy. And in the HP fandom, it could well be hundreds.
About MoM, from the group's FAQ, which seems a pointed way of asking readers not to nag the author:
When will the new chapter of MoM come out?
It'll come out when Midnight Blue is done writing it, all we can do is wait and see :). We at this ML are generally very protective of Midnight Blue, and if some members feel another is pushing her to hurry up, it could get nasty...