Not always, just temporarily. You see, I know about the
personal nodelet (see the first or second sentence of the
OP :) and it's a great tool, but while I'm reading I come
across many articles that I would like to vote on but will
not have votes for until the next day. Instead of adding
these to my personal nodelet and removing them later, it
would be nice to flag the suckers for easy access as soon
as I get my votes back.
I'm sure we could come up with some other uses as well.
The personal nodelet seems cumbersome for something as
dynamic as I'd like.