receiving devcentral like spam mails

now i understand...somebody was posting the spam messages and that caused to send mails to members. explanation below given already.

https://devcentral.f5.com/articles/blocking-spam-with-custom-attack-signatures

• Our site is designed to allow (and encourage) open communication among all our members. While we want everyone to share and collaborate, we obviously discourage malicious or just outright annoying posts on our site. So when we got hit with these spam messages, we quickly deleted them. In fact many of you helped identify and report these as spam messages...so thanks! This is a perfect example of that "caring for our community" stuff I was talking about earlier...good times. While we were able to delete these posts, we wanted a more proactive approach that stopped them before they ever hit our site.