It didn’t go well.
The student posted a screenshot of his professor’s response along with this explanation: “He wrote back and totally destroyed me. I feel embarrassed and stupid. Think twice before asking your prof about grades!”
The Reddit user who gave the student the advice said he went about his email the wrong way: “1) You e-mailed the professor rather than talking to him – that’s a big difference. 2) You worded your e-mail in the worst possible way and made it sound like you were practically offering to bribe him or something (‘maybe you could find some points that were lost during the semester?’) rather than asking for a round up.”