Disklavier

I've noticed on my past couple of posts that my email address is 
showing up on the message list. Before it just showed my user name. I 
don't mind if someone contacts me from the group and I would encourage 
it but I don't want automatic spam software finding my email address 
from the message list and sending me spam. Why did this change and how 
do I get back to the 
list only showing my user name? Anyone know? Thanks, Jeff