Hey there, as a witness myself, I tend to agree that the interest rate is too high right now, given the state of the market. When we launched the co-witness @pollenation, my partner Enginewitty and I agreed to set ours a bit lower at 15% and aimed for the median of the range of witnesses as we further evaluated the situation. I can't speculate and speak for him and we'd have to collaborate on the decision again to change our witness config, but I'd lean towards a lower rate as for my half of the conversation.
On that note, the reason I found your post is that I was clicking around on Arcange's list on the disabled witnesses names to see who might still be active as a user or just flat out gone completely. As a result I saw your witness is disabled and landed here in that process.
Are you planning to put your witness back online? I'm just trying to assuage my curiosity and see if any of there will be much red dead redemption from those currently listed as red and dead and unredeemed. ;)