Personally I think its fine and a more honest approach to using AI than is usually seen around here.
Honest, yes, but IMO a mere acknowledgment is not enough. What about a post that consists only of footnotes? Honest but ....really!!Apart from that, it will open the door for something unmanageable.
am I the only one "struggling" in a way to find AI posts? I mean, it seems that newbies flocking the forum with AI aren't that common anymore, or they've become smarter and I'm no longer recognize them. I even remember this thread being more active than it currently is.
You are not the only one 
, and I see it as some success that we achieve through collaborative efforts. 
. We need to be constantly in upgrade mode