Bots (as guests) are spamming the search function

[Scandal]

Hello people!

I have the following issue on my board:
Bots are spamming / flood the search function.

Finally I disabled search for guests usergroup to prevent it, but I don't think it is fair for the normal guests.

Does xF2.2 / 2.3 provide any solution by default or any custom addon exists for this case?

Thanks
Bots (as guests) are spamming the search function

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