I think it's hurtful to minimize someone elses problem. I'm sure lots of people count things out of habit. That is different to involuntary mental disturbance of counting rituals. I'm sure those who have OCD know what I mean. It's a serious condition that can lead to suicide, and mental disturbances can really impair someone's quality of life. There are worse things than mercury poisoning, but that doesn't mean it doesn't cause suffering.