I bet they wish they'd thought of that in the beginning. Or maybe they did and decided against it, but to me it makes a lot more sense.
The Discord got annoying for a while with people going in there asking for codes. Part of me always wants to help, but a bigger part of me was always skeptical of intentions. Plus, if we're being honest, someone who can't afford $10 probably won't enjoy this game for very long. ;)