Well i've seen on my fishing bot that whenever i accidentally enter a crowded world the profit p/h is higher? is that coincidence or a fact?

Fact! It has something to do with the ping of the world. Stuff spawns faster in higher populated worlds!

Probably because the server reads the player composition, so it applies faster generation speeds to compensate for player accumulation. 

Wow. Interesting ideas, time to bot W30 more!

Go to full world and blend in with group of people but more chance (since more real players) might try to talk to you.

 

Go to empty world and see less players but when someone does come by you stick out.

 

I just have favourite numbers I go to now lol.

Yeah, more populated worlds = more people = more spawns for some things.

 

For some reason I think it has to do with more people = different PID fluctuations, but that sounds kind of absurd lol

I know trees spawn faster when the world is crowded, but less logs since everyone is competing. Not entirely sure about fishes.