You can get rid of this crap fairly safely
Using MS Outlook Express
Use menu Tools>Message Rules>News to get access to build a filter.
I have put in three text strings to look for. "Persecu", "cution" and
"Persecu tion".
The actions I have selected are to delete the post.
For a trial run and to convince yourself it is safe you can do this...
- for actions delect "highlight it" and "mark it read". Sekect a
colour like red to make it stand out or grey to make it dim.
- After proving it for a few days you can change your actions to
"delete it"
Of course you may have to edit this after this jerk discovers what
people are doing or use your own imagination to devise your own
filters.
You will not be able to see posts with "persecution" in the titles.
Best of luck. They are easy to delete or disable again.