>Just Google "buy reddit upvotes" and the internet is full of folks who will sell you a million Likes for cheap

Some years ago I made a post on /r/learnprogramming that TL;DR was along the lines of "go to college, great ROI, plus for your first job most employers auto reject resumes without a degree" or something along those lines.

I was offered $500 up front and $500 referral bonuses to edit my comment to link to a fake degree mill. IIRC they charged something like $1500 for a fake degree and one year of service for employer education checks/transcripts. (by the by, if you're going to run a fake degree mill out of a residential address in San Mateo, use a VPN!)

Point being, Reddit comments are ripe for abuse.