Abuse is somewhat of a problem. Yes, but only a very small number. I even feel guilty to take annual leave to the point I will lose leave. Don't believe this is right. Don't know about others.
Basic solution is simple.
Make individual supervisors supervise. Yes, there is some abuse, but I consider it minor since the majority of people abide by the schedule. I feel that supervisors are not using their authority to curb those that misuse the flex time. It's not a broadbased problem, but there are a few in each Department who regularly abuse the schedules. Abuse in Minerals for sure, maybe Resources, possibly some in Cadastral, but not sure.