I see Boostio get a good amount of hate for his antics and little trash talk. But I think Boostio just gets into his opponents heads and makes them tilted. Also while bringing up the energy and confidence of his own team (you see your IGL being a crazy man and it work so you probably feel like nothing can go wrong)
He IGL's, shoots well, brings the vibes to the max, and destroys the opponent's mental.
Forged in the fires of OW comes a 🐐 (boostio was on the team that made the GOATS comp for any OW heads)
edit: wait I just realized, boostio is just an upgraded vanity