Date: 08/30/07 (Java Web)    Keywords: spam

We have deployed Comment Guard Pro across all our blogs. It has been extensively tested for this internal release and we don’t expect any problems. However if you do find problem(s) submitting your comments (and you are definitely not a spammer) then I would very much appreciate if you could let us know the problem(s) [...]

Source: http://blog.taragana.com/index.php/archive/problem-commenting/