These days given red trusts may be generally accurate, but on my short research I found at least one, who is also flagged as "third world shit poster" without spamming, who accidentally went into crossfire on bitcoin discussion.
False positives will occur in just about any system. As long as their percentage is low enough, it is fine.
There must be found a better solution.
This is the best that we can do until theymos wakes up or gives control of the forum to someone else.
You know better, how DT flags count.
You have no better solution right now, because activities of some DT members (not yours) are against the rules/guidelines. If you don't like the rules/guidelines, then discuss them with Theymos. And hopefully he won't give out the forum to members, who are earning money with bashing posts.