They've got Spain, Portugal, Greece - probably Italy to worry about as well.
If Ireland was seen to be rewarded with a cheap rate for mismanaging its economy then that sends out all sorts of messages to countries as dumb as us.
Why would any of the PIIGS even bother going to the bond market if there's continuous new money pouring out of the ECB at 3%. Have we not seen that politicans and their cronies can't control themselves when they've easy access to money.
When any wastage of money that doesn't involve setting it on fire is now considered an economic "stimulus" it's especially risky.