[OSM-dev] Reducing size on mediawiki server
osm at na1400.info
Thu Apr 12 12:47:23 BST 2007
Nick Hill wrote:
> I have also added a basic captcha system (a reverse turing test) to stop
> vandalbots creating accounts on wiki. This test is very simple, and not
> particularly difficult for a machine to complete. If that gets broken, i'll add
> an image based captcha, and/or we could require verification by email before
> allowing edits.
The anti-spam bot changes/settings I made to the OSM forum registration
page seem to be very effective in stopping automated spambots. No
spambots active last month, while there were multiple a week before
that. They are:
- Verify registration by email.
- A simple mathematical question. 
- An invalid timezone setting in the timezone selection box (bots mostly
register with the first item from such lists). 
An image captcha has the disadvantage that visually handicapped people
will have huge difficulty in completing the registration.
BTW: Nick, can you redirect http://forum.openstreetmap.org to
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