I've known employers like this. I've worked for employers like this. Employers are already monitoring social media. Third party services are paid by employers to monitor for staff that might be looking at other jobs. Recruiters make it their mission to know who's looking and what employers are likely to need their services in the near future. This is much of why trust and discretion is the most important asset on both sides of hiring related activities.
Triplebyte burning down their reputation as a recruitment avenue is one thing. Locking job searchers into reputation and livelihood risks inside Triplebyte's own reputation dumpster fire, on the friday before a holiday weekend, during historic unemployment levels, in the middle of a fucking pandemic, is unforgivable. The CEO showing up in person with hamfisted gaslighting (seriously?) in the middle of this self made disaster makes me hope those comments don't get flagged out of future HN search results.
https://news.ycombinator.com/item?id=23280120
Piggybacking on this comment and linking here so people can more easily see how completely tone-deaf it was.
More from his comment history here: