this post was submitted on 20 Jun 2023
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Peeps, I am seeing some really worrying trends on https://lemmy.fediverse.observer/list. Many instances are quickly filling up with thousands of spam accounts which will soon be unleashed on the threadiverse. While bots can bypass captchas, they at least limit the simplest scripts. We are going to face this really really soon https://lemmy.dbzer0.com/post/87753
Can we at least add support for disabling VPNs, or using some other captcha solution like recaptcha? IP rate limiting is useless with VPNs, and email verification is more trivially bypassed than the current captchas.
How can you tell they're spam accounts btw?
Small instance, open signups, rapidly growing users. On balance, given the issues others are having, it's probably bots creating the accounts.
On my instance if you looked in the database they all had gmail emails and all had the same pattern to the email. We were adding 20 users a day, then suddenly had 100 new accounts in an hour. There was a lot of talk from other instance admins seeing the same thing.
On top of that there's also activity, I saw a server with only 7 posts for 6K users, there's no way those are real people.