Z:gnu-www-ja-is-ever-good-use-nonfree-program--af881e-The =26ldquo;developing its own/en

The &ldquo;developing its own replacement&rdquo; exception is valid within its limits, and crucial for the progress of free software, but we must resist stretching it any further lest it turn into an all-purpose excuse for any profitable activity with nonfree software.