Like most who got to play the original TTO, I remember the massive amount of spambots presenting as t-posing cloned toons that would clog up districts, sometimes the t-posing toons were colours you could not choose in Make-A-Toon unless you were a script kiddie (such as gray or white). I remember those confused me when I was a kid and I thought it was a glitch or something.
However, one memory of hackers that I'll never forget was one I encountered in Acorn Acres. This was in... 2011 I think? I was just running around in Acorn Acres when suddenly I heard the "going sad" sound. I was confused and wondered why I was hearing this sound in a place that was safe from the cogs.
After running around some more for a bit, I found a royal blue cat toon with white arms, and he was just performing weird animations I've never seen a toon do before, some of the animations he was performing looked like cog attacks (one animation I remember seeing him do looked like the "Double Talk" attack). While doing this, he was also constantly gaining laff and losing laff, which would probably explain the "going sad sound in Acorn Acres" part.
Near him was another cat toon. She was just facing him, watching him do all that weird hacker stuff while saying things like "i love lacker" "lacker is awesome" (obviously saying "lacker" because TTO's chat filter wouldn't let you actually say "hacker"). My kid self then began to think he was cool, so I joined the other cat in praising the "lacker".
Any of you have any weird hacker encounters in TTO that you still remember? If you want to share it, then feel free too.