I didn't know him well at all, but he was enough of a bitcointalk personality that I instantly recognized his username when it was reported that he died. He was active mostly in the Collectibles section which I rarely visit; I was happy to get a set of memorial copper coins from minerjones, as did a lot of other members, and I've kept them stored away ever since. I've been meaning to buy some coin capsules for them, as they're about the size of a nickel, but I keep forgetting.
By all accounts, he was a good guy--as evidenced by how greatly he's missed. That should give at least a little hint as to what he was like.