Negative questions about other members are removed for "member post." Making a "warning message" is also not a question which could be another reason for removal. If a user has an issue with another member, they should block that user and report their profile or send a direct message to one of the admins about it so we can investigate the problem and take action if necessary.
"Member Posts – We do not allow members to talk negatively of other GAGers in posts. For example, "[username] is a stupid jerk!" will be removed. - ALL *Questions and Takes* about specific members in a negative way are removed as Member Posts."