Some Bots Are Sending PDFs Please Include A Captcha Thing Which Can Stop These Bots

General Discussion
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Some Bots Are Sending Cryptocurrency PDFs Please Include A Captcha Thing (For creating new topics and replies submission) Which Can Stop These Bots.

suspicious links: https://community.appinventor.mit.edu/t/bghfgtymrsnyt-rytmi-yuen5/165710/1

https://community.appinventor.mit.edu/t/dgfhgjkuiimbvecx/165711/1

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Thanks, we have been working on it all morning!

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A normal chapta would not be efficient , because today there's a really advanced AI , and somewone can also download it local with Ollama for example so it can be diffused and can be a bot
A functional and stress-less chapta is a very difficult thing to decide , and anyway this community is based on the Discourse software ...
I am not hyper expert of Discourse communities but maybe the creators of the site can change the code and add a Chapta anyway .
A good stress-less and efficient chapta would be a thing like Chapta NoChapta because is not stressive and works in background , without questions that can discriminate people with various disabilities .
But anyway how can a bot create its profile in this community ? At this point , the chapta should be also there ...

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For posting anything on this community an account is required, if bots are not allowed to create account then problem will be solved. There is another solution If it is possible--- before redirecting to this community every user go through a dummy ai2 blocks builder and asked to create something random things (pre-default)--- like create 2 variables with empty lists and one procedure named as NewProcedure, OR make app when back pressed it will show notifier alert etc. and if it matches then redirect else bot detected, it can work more secure than a captcha thing.

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What about using Akismet?

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The community already uses Akismet, but @ 60% of the spammers/bots somehow get past it.

We are now approving all new users, which has stopped the spam posts (for now), but this makes more work for the moderators :frowning:

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Maybe it's not possible , but cannot be a good idea developing an AI bot that's more "intelligent" than other bots and ... well ... does the work of moderators ?