@Haka-Taka
Here is the entire paragraph of what you quoted:
@Carlos said in Combat Change: Possession (v5.8) (Game Updates):
But for making it easier to understand, it is possible that we unify all exclusive possesions in one. For players, output will be the same: no monster is (actually) immune to "exclusive possesion" and we won't have multiple effects doing the same.
Saying this short, is possible that corrupted and glitched become hacked.
I noted the word "possible" being used at the various points of the response. I believe that is one of the end points they are considering when they put it like that, but not finalized yet.
@Carlos said in Thought on the new trait: ABOMINATION:
This one. It will be immune to ALL kinds of Possesion, Nightmares and Bleed 
I've already spoke too much!
https://forums.socialpointgames.com/topic/1927/thought-on-the-new-trait-abomination/8
And here is where he spoke about "ALL kinds of Possession", which makes me believe to include exclusive possessions (as what other types of possession can he be referring to from the "ALL" if there is only 1 kind right?).
As you can see he is clearly giving conflicting info on different threads. Asking for a clear response as to which direction he intends to commit to should be consider a reasonable request. I think he owes the reader of his posts at least that much, no? Is not like I am asking for an official apology or compensation of anything.