lol you have not been around the internet much if you dont know what trolling means.
Reason I ask is I was curious as to how developed you were that bodyweight lifts were no longer helping you.
I think the problem here is partially the way you worded your question, and partially the point you are tryin to make. You state that you can put chains on your back and do bodyweight dips, but you cant add chains to your bodyweight on the bench and do the same amount of reps. Frankly, its not even close to the same thing. Your entire bodyweight is not being used when doing dips, while on the bench you are (should you add your bodyweight to the bar).
Pullups, dips, etc are all very beneficial to powerlifting NOT because they directly add weight to the bar BUT because they strengthen the muscles that perform the powerlifts AND they can add literal size and train your endurance, both of which lead to larger lifts on the Big 3.
For example, in his powerlifting days, Matt Kroc consistently used pullups, both bodyweight and with added weight to consistently make his back stronger and therefore his bench consistently bigger. I would say he is a seasoned lifter.
FTR - Best all time lifts - 700lb squat, 455lb bench, and 655lb deadlift, all single ply