Yes, the pool is still available.
The only challenge is to find a good Prince Preprocessor strategy.
This first wallet hash you mention with 8.9 BTC below is fake, i have exactly the same hash but the amount i have in for this wallet is 5.8 BTC:
$bitcoin$64$7095f9031c639640d11d86c0a8597556ae8c940fb3bbda7c1cd789c3fea8dc08$16$c738f48338155e0a$67219$2$00$2$00
I checked all transactions of this wallet and all match correctly between the wallet 5.8 BTC and the blockchain explorer.
Did you check it also, all transactions in your side?