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Avoid detection? How do scammers get tracked by DT members then? If legitimate users want to leave the forum, their wish. No legitimate user would get scared unless they wanted to scam and couldn't do so.
You contradict your own statements that what job DT members are doing, the forum admin/mods cannot do it when the case is that the forum mods/admins don't want to do it.
Members analyse taints and link alts(if any) with it. They already doing it and leaving negative trust feedback. All staffs in this forum may not know how to analyse taints and they don't have access to IP address and such except admins. BadBear is already leaving negative trust feedback to alts of scammers. This is enough. If it is not, can you tell me a way to find alts of scammers when they use VPNs and Tor? Almost all scammers don't use same IP which they use for another account.
Scammers may not use the same IP but I guess it's possible to detect a member who has created an account using a proxy.
Known scammers' accounts are already marked with negative feedbacks. If they are banned, they will come with a new clean account and can easily scam others. When we ban them, they are *forced* to create new accounts but now, they are not and it chances are less for them to come under alts than when we ban them. This only decrease scams. Banning scammers also create a false sense in inexperienced users that "there are no scams here because they are moderated". Only way to reduce scammers is to enforce "1 account per person" rule which is impossible.
@bold: Then really it is impossible to stop scammers from scamming members here and it makes no sense for DT members to do that job which is not their responsibility.
DT members too keep changing their negative trust to neutral when they are under pressure to maintain their DT status which means they are abusing their power. One DT member admitted to leaving ratings that are not accurate and 50% of his ratings are an abuse. Do we really need such members to track scammers when their ratings cannot be trusted? What's the point?
If common members of a forum are given a moderating job to track scammers when it should be a job of the admin/real mods, that's when we can see that the forum is not functioning properly and there is no proper law and order.