Some of them are paid , they get donation money , and also from the NLNET iirc (which is tax payer money iirc).
Anyway this isn’t how you handle feedback , there is a reason wikipedia has a guideline called assume good faith , because if you are not assuming good faith you are probably assuming bad faith and that makes it difficult for an organisation to function for obvious reasons.
Consider adding it to awesome lemmy which is linked to from the lemmy readme.