Pszemol wrote:

The spammer changes e-mail addres in every post.

He's not changing addresses. This is a robot similar to those used to get around
spam blockers. The 'bot pulls random slices of text from various sources and
uses the original owners' email addresses as his own. The key signature of this
sort of 'bot is the fact that the subject lines are nonsense. The 'bot generates
random strings of words for the subject line.

George Patterson
If you torture the data long enough, eventually it will confess
to anything.