Slightly less than if there is a YES result.
Since the beginning of the financial crisis the EU response has been to ignore the scale and interconnectedness of the debt. Any measures that have been taken have been little more than an exercise in economic fire-fighting, and have done nothing to address the root of the problem.
If this approach continues, we will see the break-up of the Euro, and damage the European project for years. This treaty is a part of this failed response.
If Ireland votes YES it will be seen as an endorsement of the EUs crisis management to date. If however it votes NO, another solution will have to be put in place, and it should be a more meaningful solution, because quite frankly the treaty is quite meaningless.
I love Europe, and the Euro and for those very reasons I cannot endorse the treaty. It is bad for Europe, and it is very bad for the Euro.
I'd agree that watching Europe's governments scrambling to negotiate into place crisis measures that should have been negotiated at the start has been unedifying - the total lack of a plan B is, as ever, the characteristic feature of Europe-wide plans. To be fair, though, just negotiating a plan A is hard enough.