I think if he did have mental health problems, like many others in the field, it's now more than ever to raise the point. If he didn't it doesn't hurt to raise the issue, because it is genuine.
If you suffer from anxiety and/or depression, there is help. Talk to someone. You're not alone, and you don't need to suffer alone.
> Can we not?
He was a great mathematician. But I'm still interested in how he died. So actually, can we? You're free not to participate in that which you find distasteful, but we're adults here.
He was a great mathematician. RIP.