Social media platforms like Twitter and Reddit are increasingly infested with bots and fake accounts, leading to significant manipulation of public discourse. These bots don't just annoy users—they skew visibility through vote manipulation. Fake accounts and automated scripts systematically downvote posts opposing certain viewpoints, distorting the content that surfaces and amplifying specific agendas.
Before coming to Lemmy, I was systematically downvoted by bots on Reddit for completely normal comments that were relatively neutral and not controversial at all. Seemed to be no pattern in it... One time I commented that my favorite game was WoW, down voted -15 for no apparent reason.
For example, a bot on Twitter using an API call to GPT-4o ran out of funding and started posting their prompts and system information publicly.
https://www.dailydot.com/debug/chatgpt-bot-x-russian-campaign-meme/
Bots like these are probably in the tens or hundreds of thousands. They did a huge ban wave of bots on Reddit, and some major top level subreddits were quiet for days because of it. Unbelievable...
How do we even fix this issue or prevent it from affecting Lemmy??
Creating a cost barrier to participation is possibly one of the better ways to deter bot activity.
Charging money to register or even post on a platform is one method. There are administrative and ethical challenges to overcome though, especially for non-commercial platforms like Lemmy.
CAPTCHA systems are another, which costs human labour to solve a puzzle before gaining access.
There had been some attempts to use proof of work based systems to combat email spam in the past, which puts a computing resource cost in place. Crypto might have poisoned the well on that one though.
All of these are still vulnerable to state level actors though, who have large pools of financial, human, and machine resources to spend on manipulation.
Maybe instead the best way to protect communities from such attacks is just to remain small and insignificant enough to not attract attention in the first place.