Is the owner of a website that provides recommendations for buying and selling currencies via Forex accountable for the sin of his recommendations being used by traders who do not avoid Sharia prohibitions, even though he advises against them?

Trading with financial leverage is forbidden by a resolution of the Islamic Fiqh Academy. Providing recommendations related to it is not permissible because it is an endorsement of the forbidden and an assistance to it. Allah Almighty said: "And do not cooperate in sin and aggression." However, providing general information that can be used for both permissible and forbidden purposes, through a public website where the condition of the user is unknown, is not considered forbidden assistance.