Ill admit im not very familiar with blender, linux, or redhat, so ill look into those -- thank you.
My understanding is that nobody owns lemmy, rather people own the instances that make up lemmy. Which is definitely in the spirit of FOSS, but based on my understanding (happy to be proven wrong) I dont think its accurate to say the creators of Lemmy are making a living from it. You can donate to the admins of the instances you use, I suppose.
Likewise, isn't the main source of income for Wikipedia donations? They ask me for one every time I'm on the site.
So other than semantics, what's really the difference in making a donation to a service like Wikipedia, and paying for Sync? You can think of paying to remove ads as a donation if that helps, but the fact remains that lemmy is already available for free, and is much smaller than organizations like Wikipedia or Linux. Dude has got to eat.