If your market has collapsed so far you have to rely on charity, it's time to find another market.
Electronics is so wide a field that any article will only appeal to a narrow slice.
It's like the field of medicine. You have specialists in many different fields, like neuroscience and proctology.
I agree that getting an article into some journals (like Nature), there are rewards that are non-cash.
I think people support Linux because they're fed up of making the obscenely wealthy Bill Gates richer every time they pay for software that is buggy and insecure and that they cannot examine and modify.
It's not like Torvalds is asking people to write software for his company because he won't pay a market rate.
Commercial electronics is not the same environment as academia. Employers want to see what you have worked on, not articles you have written. There is no significant non-cash reward, so writers are just contributing to the salaries of the magazine staff.