Within the last days I observe a rising of top referrer spam from different casino websites as there are:
Could you then solve the problem already? How?
Is the right spot to struggle against the spam the spam block plugin? Am I right with assuming, that I need there to type in "casino" or "lotteries" in the line "word filter for URLs" to ban those websites (if their ip adress stays)?
Or what else should I do in the spam block plugin?
I have Serendipity 1.53 installed, with PHP 5.3.2-2