No, if you read his post above (and other posts he has maid in his blog), you will see he is actually on the other side of the issue.
His primary complaint has been he is opposed to downvoting as a way of lowering post rewards.
Well, except when he does it, apparently, in which case he seems to feel totally complacent about not only downvoting comments and posts critical of him, but is also more than willing to go on a downvoting spree against that user's other posts/comments in a revenge attack. See @nonameslefttouse's comment for more details on one such example.
I read his comment just now, but still "isn't hive a decentralized platform and the hbdstabilizer account is owned by someone or a group of individuals. If the hive was centralised it will be properly regulated but as it's decentralized will there be any guarantee that the hbdstabilizer account won't get misused one day.
Anyways I know, it's none of my business but still, I asked this because I was just curious to know about it.
The operation of the the hdbstabilizer is completely transparent, because it only undertakes operations on the blockchain. So if the current, well trusted operator (@smooth) ever decided to misuse those funds, it would quickly be detected and the proposal funding for it would be cut off extremely quickly.
Personally, having conversed with smooth for many years now, I have a high degree of confidence in his integrity, and I think this is true for many other stakeholders as well. But it's also worth pointing out that @smooth is one of the larger stakeholders in Hive, so it would not make much sense for him financially to abuse the funds he controls. And he's intentionally designed his bots to minimize the risks of malfeasance (for example, in the case the keys for the stabilizer-related accounts got hacked).
In summary, the risk for misuse of funds is very low, and the rewards from its operation are high.