Hi. I am a Golden Sun speedrunner and know quite a bit of stuff about the games. I was the person who found things like instant-death methods for bosses like Toadonpa and Storm Lizard as well as finding the majority of retreat glitch applications. The two I'm most proud of are very early Iris and the Airs Rock Sol Blade. I also found the magic river glitch and instant ladder climb. At the time of writing, I have the world record in all six main categories of Golden Sun (Any%, All Djinn, No Save & Quit) and Golden Sun: The Lost Age (Any%, All possible Djinn/Summons, No Save & Quit).
I try to update the wiki as much as possible with my findings, although I'm often lazy so these things can take time.