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Hi, >> Yes indeed, I just tried to show of different alternatives. So why don't >> we use just captchas before registering new users? > > Because they don't make any difference to real humans, and it is my > belief that the spammers targeting us are real humans. And of course there are companies offering low-paid labour to get humans to fill in the captchas for the spam bots... But on a practical note: How about using Mollom? That works quite well on discarding spam automatically per posting, and asking for confirmation with a captcha for those cases where the system isn't sure. http://mollom.com/ clara -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJPGZXNAAoJEFWQx5szMzrSxXwH/3Lyb2OhNDbPHi+qxEnC88b3 POrtg+tC1FywBpkrRqx7Ff/9SgyUSqb0Mo+Xk5tHM7JXlPvSr1KWZqL3EqXdbyvt gbEcdDs/xJIHVjpBhh6ZLBid+9vMSuhAB8DOgk5+Ype4gVJdUUC/rXN9sZF/zKM0 Z3WAan71Fg+q56MbvnxgDEz12i0joqTaanz5icAHbtxJmhhRxCxs6IhHtNpXqv+x omkmjIPlTeNfjdf2UxA0yt3z0gps64hR7o5qAjn/TvLe0fbaT/aRDAQe8S6/xLuU FoL2N+xoQIvPbwddrn0QEWMC9yqzwpz+vlBtWGVVCEKum8mZC9FmISbimUVw6R0= =Bf96 -----END PGP SIGNATURE----- _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk