I used to just make copies of the keyclone.ini file and use those as profiles, but with the addition of the import and export buttons in the maximizer I don't have to do that anymore.
Yup. Import and Export makes life easier but for me it's still far easier to just run multiple installations of KC. Each is completely self-contained and needs hardly any disk space at all.

That would be less desirable for people who make extensive use of global whitelists, blacklists, host strings, keymaps, etc, but I don't use any of that