Took 3 hours to spot a bot that was posting perfect grammar on purpose

Last Tuesday I was scrolling a local buy/sell group and this account kept replying to every listing with flawless paragraphs, no typos, zero slang. I figured it was just a detail-obsessed person until I checked their post history, every single comment was the same length and ended with a question. Spent 3 whole hours cross-referencing their replies across different groups before I noticed the timestamps were all exactly 4 minutes apart, no human does that. Turned out it was a property management bot seeding rental leads, and the tell was it never once swore or used caps lock. Has anyone else found a weird timing pattern that gave a bot away?

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wendy_henderson214d agoMost Upvoted

Timestamps are the dead giveaway every time. I caught a fake review account once because it posted at 2:47 AM, 2:52 AM, and 2:57 AM exactly, like clockwork. No normal person shops that regular at that hour. The whole 4-minute pattern thing would've tipped me off way sooner than grammar, honestly. Once you see the timing, the whole bot thing gets obvious real fast.