feeding before fishing with a combo that I prepare at home
I've known people to do that, we call it chumming. They will drop a bunch of homemade prepared bait in a particular (secret) area a few days or a week before fishing it. When it's time to fish they use that bait in that area. It not legal everywhere here most do this targeting catfish. I personally haven't done it.
Interesting... I never heard that it is illegal in some other parts of the world... But, I get it if you attract fish and you catch it in some "illegal" way... that makes sense...