I was also aware of the John M. Ford convention that command-level Klingon officers would adopt the "K-" prefix for their names. (The "Klingon-names-start-with-K" pattern seemed a lot less silly to me than the Vulcan convention of starting male names with "S" and ending them with "K". Even fewer possible non-silly-sounding variations of *that* pattern.)
Seriously, I'd fully expected any representation of Worf as a captain or admiral in the future to be named "Korf". Makes me wonder if they'd actually do that if the rumored "Captain Worf" series ever makes it to reality.
The problem with stuff like that is that even to me, as a fan, it becomes unnecessary continuity baggage. When looked at retroactively, it brings up needless questions that have to be tap-danced around to explain, such as why Duras wasn't named Kuras. I'm convinced it's stuff like that which turns some potential viewers off, and I don't blame them.