When I post questions here, tutors contact me by email offering to tutor me at a significantly less price than Course Hero.

When I post questions here, tutors contact me by email offering to tutor me at a significantly less price than Course Hero. When contacted, they said they would help at a rate of $50-$100 per assignment or issue. They want to be paid first through PayPal before they deliver the required tutorial service. Unfortunately they tend to dupe students after getting by doing either nothing at all or unlocking and using documents from Course Hero that are not relevant to problems at hand. Seems to me there are a lot of dubious characters in Course Hero parading themselves as experts in subject matters. I'm really getting tired of this duplicity. This resource isn't what it's claiming to be. Thanks.