 |
 |
Andrew Darby wrote: > It's anecdotal, but since I added a little "What's two plus two" input > box to my forms, we hardly get any more form spam. You could easily > switch the question each time, although I haven't had the need to. > > I know that Blojsom, an open source blogging application, has been using that kind of cognitive captcha for several years. I read several blogs that are built on top of blojsom and haven't noticed any spam problems with any of them.