I agree with you about that, but why would an ill-defined report be kept open in the first place? It shouldn't be. Give the user an opportunity to provide more detail - for my own use I have some auto-text "scripts" set up, to make prompt questions easy - and then auto-close after a few days.

[Edit, answering my own question: they're left open because they were ignored to begin with.]

I write excellent bug reports, the vast majority of which (I'm thinking of one service-provider in particular, may they live in shame) get ignored. Or escalated and ignored; somehow that feels worse, though I don't know if it should. I guess it's the hope. It's the hope that kills you.