More than two years ago, I've made this programming question on SO. I was struggling with that at work, and didn't know what to do.
Yesterday, it got a new answer.
I don't work in that company anymore, nor have the code/environment set up to test if what the user says is OK or not. I don't even remember the problem anymore - I can't tell if I've solved that or it was left undone.
Is there something I should do about that question or its answers?
I don't want the users to feel I don't care about the effort they do for answering, but I don't want to upvote anything I haven't tested at all, too. I can't even guess if the answer makes sense or not.