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    vansig wrote:
    forcing logins doesn’t work at all.
    spammers will happily obey and create accounts, before they spam.

    If they can. In a related thread I mentioned a solution that works well for forum registrations given the right questions.

    vansig wrote: instead,
    you should force image captcha solving to post any content containing links.
    that’s what works for mediawiki.
    ( note that math captcha also does not work.)

    reCaptcha may well be just the right service for this..

    If captchas can be avoided they should, as they can be a real impediment to those of us with impaired vision:



    FYI, I moved the “Let’s Edit the new Physics of Focus Fusion Seminar” to a new thread: https://focusfusion.org/index.php/forums/viewthread/1081/ – in case it turns into a focused discussion.

    AvatarBrian H

    Interestingly, reCaptcha only verifies one of the two images; the other is an attempt to get a “consensus” on a real-world image which OCR is having trouble with. Thousands of pages of old documents and papers etc. have been resolved this way.

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