Thanks, it's valid. Every donation coming in gets staked there.
About stealth transactions in HAL. Are they needed really? There was a proprietary HAL wallet for these once upon a time. This is an old story. Dan Metcalf added support for these anonymous transactions using his XC code, advertised it to be reviewed and working properly, so Prometheus could pump HAL to 50K sats. Of course, this code has been never open sourced. SX may be added in several ways, but the most practical are either dual key addresses with ring signatures as implemented in DarkWallet and SDC, or a more complicated solution with master nodes like in Dash. Zerocash doesn't seem optimal. If there are other competitive designs, I'm all ears.