Thanks for flagging this up - we'll look into it. Can you please send me PM's with examples of failed alerts and any details so I can find out why this is happening, please?
Is it the email alerts that are failing or is this a problem with the on-forum red alert flag?
https://www.blackhatworld.com/account/alerts
Anyone else with similar issues, please PM me with as much info as possible so we can get this resolved.