Join Date: Oct 2015
Drives: 2011 Forte SX 2.4L (thankfully MPI) A/T 131K miles
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One thing I don't understand is why these sites don't use high volume blocking. The normal volume rate is VERY low - I'd guess that somewhere around 1 new post every 20 minutes would be the average rate, and 5 per minute would be the max. I might be off on those numbers, but the admin code captures all of that anyway, and the actual average/max posting rate is always known internally.
With the rates known, the instant that posting begins to spike beyond some preset and modifiable number, simply start sending out the following message:
'This site is experiencing a spam attack.' followed by requiring a 'human recognition' confirmation in order to complete the post.
Every once in a while the volume would be normally high, and the spam message been sent would not be true. But who cares, because normal traffic would continue unaffected during the short time of high volume. But the spammers denial-of-serivice attacks would never work, and they would be stuck with manually entering single spams. I don't think they would be too interested in hanging around very long doing that.