Just using them to illustrate a way in which things could break for some people and not others.

With regard to your log, it's not a good example. The first commented instance of what you thought was buggy behavior is completely normal and the second one can be explained by latency. For reference, I've played from 2006-2014.

I've played many thugs and orcs, and I'm very comfortable with the way cheapshot works. It takes the pulses of lag of trip from about 24 to 27 for the victim, just enough to get your command in before theirs if you don't take too long.

Don't take this as me saying your log is necessarily not an example of it occurring in the second case, but it's hard to tell for sure here, I know you are from Russia, which should net you at least a ~120ms ping, so ~60ms for your command to reach the server.

That's rather small but it is enough with the right timing for this to unfold this way. In any given case, latency could be even higher, either on your end, or CF's end. And if you play from work there may be a VPN involved in there.

It's also easy to suspect lag here because in one instance one of your commands goes through rather late after you input it.

This is why a desktop/window recording would be much better evidence of its existence. You could look at the video frame by frame in a program like Avidemux and see every interval of 16ms with timestamps if you record at the default 60fps in shadowplay or the like. And from there if it's clear it's real, it would be much easier to tell where it's going wrong code-wise.

Now Rhyaldrin responds later in the thread you made, linking to this:
https://www.carrionfields.info/forum/viewtopic.php?f=4&t=292

From that we have this:
-wilderness (61%) (91%) (100%) -outdoor- (5 PM)>>
With a powerful leap, Dzuxoks executes a rising crescent kick on you!
Dzuxoks's mountain storm kick DISMEMBERS you!
Zinszar delivers a blow of deadly force!
You parry Zinszar's slash.
You dodge Zinszar's slice.
You dodge Zinszar's slash.
You begin to get a feel for Dzuxoks's preferred attacking movements.
You parry Dzuxoks's slash.
You dodge Dzuxoks's slash.
Zinszar parries your piercing venoms.
Zinszar parries your piercing venoms.
Seizing upon a flaw in Zinszar's tactics, you trip him and he goes down!
Your leg is torn up by a pair of golden spiked leggings!
Zinszar's jagged leggings grazes you.
Your trip barely scratches Zinszar.
Zinszar is convulsing on the ground.

-wilderness (55%) (91%) (100%) -outdoor- (5 PM)>> artery zin

You get in one more shot on Zinszar as he flees.
Your parting blow EVISCERATES Zinszar!
Zinszar has fled!

-wilderness (55%) (91%) (100%) -outdoor- (5 PM)>>
You parry Dzuxoks's slash.
You dodge Dzuxoks's slash.
Dzuxoks deflects your piercing venoms with his shield.
Dzuxoks has some small but disgusting cuts.

-wilderness (55%) (91%) (100%) -outdoor- (5 PM)>>
Faldeikso leaves.
Dzuxoks has some small but disgusting cuts.

-wilderness (55%) (91%) (100%) -outdoor- (5 PM)>> artery dzu
They aren't here.
You dodge Dzuxoks's slash.
Dzuxoks parries your piercing venoms.
Dzuxoks has some small but disgusting cuts.

-wilderness (55%) (91%) (100%) -outdoor- (5 PM)>> With a powerful leap, Dzuxoks executes a rising crescent kick on you!
Dzuxoks's mountain storm kick MUTILATES you!
Dzuxoks has some small but disgusting cuts.

Unless those spiked leggings did something (and I thought they only did damage), this could be an example of it definitely happening.

Zinszar also does not have any legacy relevant to the discussion:
http://forums.carrionfields.com/dc/dcboard.php?az=show_mesg&forum=31&topic_id=58561&mesg_id=58563&page=1

edit: clarification, too many parenthesis, etc.