Is money acquired through fraud forbidden after taking the initial amount "in revenge" from the fraudsters, and must it be given as charity to get rid of it?

It is understood from the question that the amount paid is a wage for the work of liking pages and posts, and not a donation. Therefore, the payer does not have the right to reclaim it after the work is completed. The questioner may take this amount for himself if the work of liking is permissible. However, if it is forbidden, the money must be spent on charitable deeds and public interests, based on the statement of Sheikh al-Islam Ibn Taymiyyah that money acquired through unlawful means should be spent on the interests of Muslims, and that if the recipient knew of the prohibition and then repented, he must give the money in charity.