The freedom open-source software gives you may be priceless, but that doesn't mean you can't support developers nor should you take their work for granted.
Support your favorite open-source projects and their developers! Give them a chance to become self-sustainable! Lots of small contributions can make all the difference!
Do it, become part of the greater common good. It's not everyday you get to participate in a revolution! 😄
(No, I won't get tired of repeating this message. It's important)