Much haters in this community tbh. He was banned once and that's why he's hated.
He literally streamed 10h/day and subathon 24/7 for months last time I've checked about him. I'm not sure why people assume he would bot when he's literally endgame all 22* and has already been banned in the past, he doesn't need anything like this looking at his weekly meso income + all the carries he get.
He would be the dumbest person alive if he was really botting + it's his source of revenue. Also, his exp aligns with what's within the stream charts so I don't believe that's the reason.
In my opinion, it's probably linked to his previous account, on which he claimed that his friend (hacked/botted?) on it.
People are jealous from success and this is not only in maple, but in this game it's taken way beyond : see CMs/popular streamers dramas.