"They revealed their IP address" How many technical experts do we need to explain that IP address is not proof, especially when many random IPs and proxies are

"They revealed their IP address" How many technical experts do we need to explain that IP address is not proof, especially when many random IPs and proxies are involved. Suppose I am a hacker who wants it to seem like NK did it. I use a bunch of random proxies, and I use a couple machines IN NK that I previously hacked into. ( adding time delays to all commands I send to these ) I do stuff through these machines a bunch, making sure to connect to them and setup all the seeming commands ahead of time, and I let it happen. -wham- "proof" that I'm from NK and am an idiot suddenly realizing I forgot to use the proxy. I agree with the hackers. FBI are idiots. ( not the first time I've noticed they are idiots either; they also were very stupid when dealing with myself as a hacker imo )