but I cannot find the reason behind a potential AI farm. We definitely have stopped a large number of accounts here, imagine what would happen if it wasn't for this thread.
To get as many posts as possible to farm activity points with little work and possibly earn some merits, rank up and join the signature campaign. Is there another reason?
You are right. You don't have to be a clairvoyant. Check out his posts in the sections where the merits are pouring out like a tap. The topic on push-ups, the WO branch, and the topic where you can rephrase and chew over the same thing for the thousandth time: Buy the DIP and HODL! His year-long breaks also clearly indicate that some accounts have already become worthless, which means it's time to use a new one. Luckily, there are people on the forum who will quickly cool the ardor of such writers. 
What's really happening on the Buy DIP and HODL thread? Too many long quotes and what are they really discussing about and why is merits being spread around like Mia Khalifa's legs. Too many unanswered questions.
Our hands are tied, and there is nothing to link them to other than AI usage, which is insufficient.