Follow-up Comment #7, task #2876 (project savane):
To be able to defeat a bot, you must use what differenciate a human from a
bot. All your solutions are simple solutions that a bot can understand. An
automatic solution to the problem is not a solution as there is or there will
be an automatic answer for bots.
I have no solution for you. And I even wonder if there is one. All the
solutions I found were not real solutions (for example, ask a simple question
such as "what color is a banana?" and let the user enter the answer).
A thing that differenciates humans from bots is the notion of time. If there
is enough time between the creation submission and the mail confirmation, it
could be ok. Because a human can wait. A bot which creates thousands of
accounts can't wait and save all the informations. That is just an idea.
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