To our unfortunate, the spammer started to change IP address between
every post since this morning, which void regular ROCK54.
http://pele.bbspink.com/test/read.cgi/erobbs/1390815733/255-256

hmmm....any possibility for SAKURA?

Note:) Regular Rock54 allows registered words to be posted twice or
three times from a given IP address in a day before blocking further
posting. SAKURA is the special registered word in Rock54 which never
allow the word to be posted even once. I have no idea that the Sakura
word is described in the Rock54 word lists though.