I am late to the party but oh well...
If that was a Dev, that was inappropriate.
With the ship hijacking and floaty feet to kill the guy... and walk down to the ground.
Quite frankly, if that was a CIG Dev that needs to be quashed now.
With Ark, the developers allowed toxic work culture against customers in official servers.
The game started somewhat decent and then spiraled down into a cesspool for developer-customer interaction in-game.
The culture was not addressed early enough and strong enough to keep from spiraling into what it became.
This all happened within the first two years of the game's alpha early access development. I doubt it is much better now.
CIG's behavior in deleting the post is odd to me as well,
why not comment that they will investigate it and that they take an activity like that seriously?
Why attempt to hide it and what is the philosophy about that?
Now... this could simply be the guy's system was really bugged there was a player with that name in his party.
the floaty feet thing can happen with NPCs, I have seen NPCs floating walk after my character respawns and assets are not loaded in quickly enough.
Mind you I have SC on an Optane drive and even with that, the floating walk NPCs happen from time to time right after respawning.
And the marker bouncing can happen once in a while, I have seen it but not as bad as in the video.
In any event, I have way more questions than answers from looking into this.