I try to keep my knives as clean as I can. Part of it is that I find the maintenance/cleaning part somewhat therapeutic. There are plenty of times when it can’t be done while I’m using it, or even immediately after, but I usually do clean them as soon as I can. Especially tape, glue, or other sticky stuff. I’m also a self-admitted chronic polisher. Brasso, Mothers Magwheel, and sanding films are my friends.
I actually completely broke down and cleaned a buddy’s Hogue auto last night by his request. Pretty sure he used it to make barbecue or something, as it was full of sticky shmutz. I couldn’t handle carrying any of my knives that crudded up.