I started a similar thread in W&C a few months ago. SharpByCoop emailed Keith to find out if he's ok and here was Keith's response.
Hi Coop,
I am fine. I have taken a step back from the forums, but still love and collect knives. One day I may make my way back to the forums, but I wasn't too happy with what Bladeforums had become the last time I checked it out, and it was basically the only forum that I spent time on. Thanks for your concern, and you can let everyone know that I am OK, if you want to. If I do make my way back, it will probably be at Josh's Montana get together, but it won't be this year.
Your friend,
Keith