On Slush the last Namecoin that was processed was at block 41647 on 2018-01-12 10:28.
According to coinmarketcap.com the highest price of Namecoin around that time was $7.93 on 2018-01-13 14:24, but a week after this the price was already below $5 and another week later it was below $4.

Yeah, they didn't live up to the promises they made about NMC. But a lot of other pools did not even offer the option to merge mine NMC. And the last time I calculated a whole year of merged mining NMC was worth as much as one day of mining Bitcoin.

I'm not even going to bother to claim my NMC, so I really don't understand why you are being so angry about it.

It's like selling something for 73.25 and then going completely bananas when you find out they gave you a nickel instead of a quarter.