I'll go first: r/kitty. One of the hundred grillion cat subs back on Reddit, the culture in this one was you posted a cat picture, and the only word allowed in the title or in any comments or replies was "Kitty."
Someone is using that subreddit for covert communications, I just know it. Either on the level of "if u/PM_me_your_nostrils posts an orange cat, we attack at dawn!" or there's some steganography going on with the pictures, but that subreddit was too stupid to be as active as it was.
years ago I gamed the casinos on an old Intel II that was slow a shit online. The cup game was the easiest to beat. because of this, I had collected over 7 million bottles of sand that were worth like 1np.
ffw a few years and I sign in and these things were some kind of quest item and were selling for like 40np.
I flooded the market with my stock at 5np each, caused a run on the bottled sand market and caused a market crash.
got my account banned. they refused to activate my account and said I hacked their system because there was no other way to get that many bottles.
and that's how I tried to usurp the corrupt neopet kingdom and never played again.