Hey @hairen ,
I don’t have all the specifics, but do be aware that NEAR Foundation is not simply giving NEAR away to facilitate nodes.
NEAR can be loaned from the NF in order to spin up a validator, this was particularly prominent when the NEAR requirement to launch a validator was particularly high (pre-phase 1 of Nightshade.
I don’t have specific details in regards to each validator, so I would defer to @Bowen or @janewang who I suspect would have more information on this.
Appreciate you pushing forward the goals of decentralisation.