Sledgehammer defaults to nothing, it just lies around before someone takes it and makes an action. You're basically saying that if a label on the tool misleads you, then you're not in charge and the tool is broken. That doesn't work in engineering, nor is it forgivable to not meet all formal requirements (like reading the documentation thoroughly). You have to look at your tool to find its best fit or at least to find a handle; moreover, labels mean nothing - they are just nicknames for synopsis. Who thinks otherwise should consider javascript or alikes. We live in a world where labels create the entire meaning, but let's not fall into this idiocy in workplaces.

The linux manual for strncpy makes few good notes about its usage and that has a meaning, since it is official and will not change due someone ranting about something again.