My apologies, the start of my previous post was grammaticallyincorrect and may not have been as clear as it should have bee. St the start, I should have written:
Beside each comment, add a simple check box which a visitor adds if he/she thinks that the comment DOES NOT ADD TO THE DISCUSSSION. Each time the check box is clicked, the following information is recorded:
1. A timestamp (equivalent to the output from “date +%s”);
2. The IP address from where the input originated.
A (MySQL?) database table row, consisting of the comment identifier and the above data is created. This row would look like:
<comment identifier>,<IP Address>,<timestamp>
… with <comment identifier> as the key.
(Please resume reading my my above comment, commencing with the word “This table can, for each comment, keep a count of visitors …”)