You don't see working to restore suspected compromised accounts an act of protecting property rights?

Protecting some property rights by compromising others, where the central authority gets to decide which take precedence over others? Not really sure I am sold on that vision of 'property rights', in fact I'm pretty sure I am not sold on it.

As I said in my post, I wasn't a witness at the time and yes, I know Steemit was using their stake to vote for witnesses prior to HF17

No, that is a different matter. Some Steemit employees were voting, including (but I believe not entirely) with stake that was vested from the ninja-mine.

In the case of HF9, it was the literal steemit account which immediately and without warning or discussion voted out all witnesses and pushed through the fork which reset keys on a wide swath of accounts, some compromised, some not. The witness discussion on the topic was literally "What's going on?" There is no way that you can say witnesses supported it, because there was no discussion or voting.

As I stated, there was a very real risk that I and others could have had our property lost and that only didn't happen due to luck (in my case a difference of a few hours). Steemit unilaterally decided that their own 'property rights' (really a misnomer when viewed through the lens of being the subject of one party's arbitrary decision) were more important than mine and others'.