They do, but the can't cover the expenses for large scale trafic.
Discussion
Should not require a larger instance to run a relay. Perhaps equivalent of 65,000 Sats a month. Does it need to be in Iran or can be in Bahrain or somewhere near to not be blocked?
Im not sure, some people from a groupe that are related to nostr:npub1fdzjam465k7660kakczdm7xujwk7tzse2w8xq3c2yyhdqp42zjaqc0l9xg run relays and vpn and so.
Idk much about the tech parts.