The problem is that we don't know how to help developers to fix this problem. I hope they have already had memory dumps from our systems (because of opera_crashreporter.exe which is in our systems). And if memory dump is not enough, we can provide other info, but we are not sure that devs even know about this problem.
And about disabling extensions: I'm not sure, but Task Manager shows that every extension works in separate process. And I hope crash on one extension can't cause crash of the whole Opera (otherwise it's bug in architecture).
I absolutely agree that it's better to providesome info about problem. But even user don't do that, at least we know we are not alone and the more people comment this post, the better chances that developers pay attention to it.