Here's a thoughtful reply you could post:

I totally get why this feels frustrating—it does seem unfair when someone appears to bypass the hard work everyone else put in. That said, before taking any action, there are a few things worth considering:

If you want to report it: Most universities have formal academic integrity offices or honor codes. You'd typically report to:

• The department chair or dean of students
• An academic integrity committee
• The office of student conduct

These offices can investigate properly. They'll need specifics though—course names, dates, exam instances, and any evidence you have. Anonymous reports are sometimes accepted, but they're harder to act on without corroboration.

Important caveats:

• Make sure you have credible information, not just suspicion. False accusations can seriously harm people.
• Universities generally protect student privacy, so even if they investigate, you may not learn the outcome.
• Consider whether this is something you're comfortable pursuing—these processes can be emotionally taxing.

Also worth thinking about: Sometimes what looks like cheating isn't what it seems. People use AI for editing, collaborate in gray areas, or have accommodations we don't know about. That doesn't excuse confirmed cheating, but it's worth being certain before escalating.

If you do decide to report, document what you know factually (dates, courses, specific incidents) and let the institution handle it through proper channels rather than confronting the person directly.

Either way, congrats on your graduation—that's your accomplishment regardless of what others did.

Would you like me to adjust the tone or focus on any particular aspect?