Either or both of these tweaks would be immensely helpful:
'ci target ' also ignores any public-channel broadcasts from targeted alias, not just private messages
'ci chat' does exactly what it does now, except it allows through its filter encrypted broadcasts which you have the key for. I actually already assumed this worked this way, and found out the hard way that it does not.
I don't really see any IC reasons for either/both not working in line with other present SIC commands, and can't see how either/both would in any way hinder RP. Rather, being able to smartly filter public SIC spam would allow RP'ing a scene to shine through the noise a bit more, as it were. We can filter SIC spam if a specific word is included, but not a specific alias? Seems weird.