Comment by mmooss

There are many reasons for influence campaigns, that isn't new. Influencing the public is incredible valuable; that's why so many invest so much in it. LLMs automate it like never before.

Plain advertising, governments' propaganda, political propaganda for one group or another to shift public opinion (it's done on TV networks, why would they not do online campaigns?), astroturfing by corporations promoting acceptance or fighting negative news (e.g. rideshare, AI, whatever certain wealthy personalities are doing) ... the list goes on.

HN has always been relatively influential in the tech industry and therefore worth influencing, and now the cost is very cheap - you don't even need to hire many people, so less-resourced operators will find it worthwhile (and they will also attack lower-value forums).