I don't think it's anything as sinister as some suggest. I think they are having cash flow issues, not that it makes it much better - but it seems to be the case, Dwolla withdraws went from taking 1-2 hours to 1-2 days, It seems like nothing is automatic anymore.
If this happened occasionally, it wouldn't merit much concern - but it seems like every single week MtGox has problems with at least
one of their withdrawal methods. I don't know how they've set up the accounts from which they process withdrawals, but those should be automatically topped up when they hit a certain threshold instead of withdrawals effectively being suspended while Mtgox transfers funds to replenish those accounts.
I don't get why
this shit is still happening on a weekly basis. People don't need vapid apologies every time this happens - they need the underlying problems fixed so that it stops