Trust Exclude List

[sangaman]

So I'm in a situation where there's a certain user I don't want to trust - namely I don't want to take into consideration their trust ratings for other users since I believe they abuse the system with frivolous ratings - but he's trusted by someone I trust and therefore counts as trusted for me. I don't want to have untrust anyone and I don't want to have to reduce my trust depth.

Rather, I'd love it if there were a list of users one could specify that would remain untrusted even if they fall somewhere in your trust network. Could such a feature be implemented? Thanks.