hi DP i recently received an infraction the post on which i received infraction is deleted however it was mentioned in email alert of infraction i just need you to double check if it is an attack like xrumer etc because it seems an attack if you found some more these type of masked URL replies you might have to check it however it may be some one else posted from my account and i confirm this is not any of my friend however i changed my password i am not claiming why i got infraction but i want you to check if DP forum is safe from xrumer type applications.
Maybe somebody is remotely accessing your PC and posting from your account. If I were you I would also enable firewall and install a good antivirus. If the problem persists formate your drive and reinstall OS.