this post was submitted on 20 Jun 2023
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As you can see, there is a massive spam wave going on on Lemmey based instances.

This can be avoided by enabling CAPTCHA with signup and also LIMIT the registers per X seconds!

Currently the accounts are idle but this can change soon.. Please take action NOW!

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[โ€“] [email protected] 2 points 1 year ago* (last edited 1 year ago) (4 children)

This can be avoided by enabling CAPTCHA

Sorry, this is misinformation. Graphical CAPTCHAS can be trivially defeated by bots, as the lemmy devs have said.

If you want to slow the bots down, a hashcash implementation like mCAPTCHA would actually work and the lemmy devs already said they'd accept a PR for this.

[โ€“] [email protected] 2 points 1 year ago

Makes sense! Back when we had covid vaccinations in India, you needed to solve captcha to book and people used to bot it to h'll.

This is a good approach to solving the captcha: https://github.com/janghaludu/cowin-captcha

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