Oh, remembered once I had something similar. Some guy named freewowleveling wanted me to help write a review for some indie game of his, and said he would repay in cash or free game leveling. And added an email, too. Seems to be the same hoaxer, and seems he wants to collect people's emails for some reason. Anyways, just don't answer to random suspicious people like that.
:3 User got banned
try using the report button next time
and don't worry about those silly warnings, I never punish a user who is trying to help with reports, if your report is bad, it will just be ignored.