Hello,
The posts you found are more than 5 years old. In terms of security software that means the information there is severely outdated. In the past years considerable changes have been made to our products and currently Emsisoft Anti-Malware protects against fileless malware.
Fileless malware detection has nothing to do with the reputation settings you asked about; our behavior blocker routines were adapted to adequately detect and block fileless malware a few years ago.