I guess "useless" is subjective, and perhaps a little harsh, but there are tools on many SAKs and tools that I get asked about all the time. The awl is one of them, and is the utility hook on the back of most 91mm SAKs.
Anyone who has been around here for a bit knows full well that I am not a huge fan of folding lanyard rings or numerous flatheads either. One, maybe two flatheads are enough, but a bit holder seems like a much more sensible concept. That's a discussion for another thread though!
What implements strike you as very limited or useless?
I'm not certain I have ever used that either, or the cuticle pusher on a MiniChamp. Def