Tell you what...it's no big deal. Don't add printing, forego the sale, and we'll call it done. NotePad++ here I come. It's clearly a more capable editor, anyway, and they don't pretend to be by lopping on a $70 charge.
Obviously, adding a built-in functionality of basic Windows apps is too hard for this developer, or they're just not up to the task. The need for print capability as justified by the fact that the topic has come up a number of times over the last 8 years and requires workarounds (like plugins) says a lot about why the program isn't worth the $$.
I'll just laugh about this when I have to go to my boss again with a code snippet that I printed and say, "Hey, we saved $70!"
This requirement, by the way, has come up in forums for all the programs mentioned that don't support printing and there's literally no good reason not to provide such a basic capability.
NOTE: For the record, I tried installing and running the Simple Print Function plugin and got an error about 'lpstat.' I'm not going to fight with that to get it to work. It's great on you to write the plugin, don't get me wrong, but some need must have prompted the effort to program it.