Interesting one this. We all have our perceptions of what is safe or not, and indeed make judgements every day when we fly. Very few of us are experts on volcanic ash however.
On Thursday, I was tasked to fly, and after gathering as much information as I could, judged that it was safe, at the altitudes and latitudes I needed, and so proceeded.
However, looking at the last few posts above, it looks like some pilots like Double Bogey could have a major conundrum.
It appears that some NS pilots do not believe it is safe to fly, and yet at least one operator has started operating again. If one company has started, then there will be pressure on all the operators.
However, ultimately the aircraft captain is responsible for the safe flight of his aircraft. How much will your company support you as a commander if you refuse to fly?