I'd gladly risk a blacklist over this, but the problem is that nobody is allowed to support it without risking blacklisting themselves. The system actually de-incentivizes supporting any accusations, which makes no sense.
Theymos stated:
Creating or supporting a scammer flag is actively affirming a set of pretty clear fact-statements. If someone knowingly supports a flag containing incorrect fact-statements, then that is crystal-clear abuse, and I will seek to have such people removed from DT ASAP. People who are habitually wrong, even not knowingly, should also be removed.
It seems that it is fine to support a flag, as long as the accusation is based on clear fact-statements and doesn't contain false accusations.