Well, if you're setting up 1000 full nodes then you're doing a lot to help the network, so I'd say you'd deserve a good chunk of donations (we're not trying to force anyone to donate, just allow anyone to prove that a full node is associated with a specific address).
1000 nodes run by one party is very harmful to the network compared to just running one system with more capacity, consolidating node control like that reduces the diversity of voices available to other hosts. Done maliciously it would be called a sybil, done innocently its just a waste.
Fair, though I know I just run fullnodes on computers or servers I have anyway, as a thing it does on the side.
That honestly sounds like a bigger problem than a 51% attack, since it would be easier.