macelee wrote:There are a number of ways to prevent this sort of problems:
- For computer spam bots, they will complete whatever forms very quickly unlike human-beings. So write some script to prevent forms from being submitted too quickly.
- Implement 'honey pot' - that is some fields in the registration form with some attractive names such as 'homepage', 'url', etc. Use CSS to hide such fields so they will not be seen by normal users. But computer bots are normally silly enough to fill something in these fields so such registration can be blocked easily...
That would inhibit bots, but the latest spammers did new accounts at a rate of approximately one every two minutes, which suggests that they had a human in the loop.