Moderators don't touch anything regarding scam accusations except in the most extreme of cases. If you know someone who had a post deleted in a scam accusation thread, it means that they were criminally off topic. Borderline calls might be made occasionally elsewhere, especially in boards with stricter standards, but scam accusations, even stupid ones, are held with special care.

Hierarchy of Sacred Posts:

Satoshi's
Admin's
Scam Accusations
other Moderators
Meta
Typical threads
Strict board standards