The exact concerns vary by the subreddit but I’ve found the shit they ramble about is never actually that way IRL.
Take /r/antiwork, for example. The employer is always checking your Teams or about to throw you under the bus or some other dramatic Hulk Hogan shit - I swear virtually every “hard work conversation” I’ve had since that sub rolled out, I’ve gotten exactly what I wanted because I work hard, treat people with basic respect and practice self-control.
I used to be into comparative religion and the Eastern religious subs, anti-white racists are always telling retarded lies about how Westerners can’t go this or that place or religions don’t get along with each other (ex. Buddhist vs. Hindu.) I’ve literally walked into a Hindu temple, said I was a White Buddhist (not so much today) and had them be excited I was there because they didn’t have such shit thinking.
I’ve had multiple Redditors tell me XYZ financial situation was unsolvable when I ultimately solved it with a phone call.
I had a gf with BPD when I was in college who was one of the first people I knew to use Reddit. It was about 2011 and after we broke up, I caught her talking mad shit about me on there. She also lied about her financial status, family, everything but had so little InfoSec, it was obviously her. I texted her her username and asked why she’s always like that instead of getting real help. She deleted her account within an hour. Looking back, I think all Redditors should be assumed to be similar.