Posted Oct 30, 2003 4:44 UTC (Thu) by Ross (subscriber, #4065)
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The article suggested exactly what you do. It also said that it won't completely fix the problem but it at least increases the amount of work that a spammer has to do.
Did you read the whole article?
Posted Oct 30, 2003 9:10 UTC (Thu) by pointwood (guest, #2814)
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Furthermore, sometimes that is also considered too much of a hassle for the people that would like to submit comments.