They are trying to buy numeric domains for pennies. They must be getting domains for pennies getting sold by uneducated sellers since they send so much emails.
All these spam emails are not from real chinese buyers ... they are not sent in good faith ..... most probably from big players to push the prices up so they can unload tons of shit on speculators.
4llll.com 5lllll.com 4n.com, 5n.com, 6n.com are now a stock market. you may win sometimes but you lose at the end unless you are a big shark .... you have to be more careful
receiving them too, they look for cheap buys by spamming whois contact details.. they almost never reply once you quote a price (unless it's pennies i guess)
I got two different emails, one said "i am straight out of school and need website for business" I replied website address costs money ....... postmaster could not deliver
I am receiving them too. Replied on few of them and did not receive their reply (few times I stated $xxx price and in other replies I asked for their offer). They are not real buyers.