These users are wearing signatures, doing other things normally in the forum as if the -ve tag doesn't really matter.
Red tagging is not a restriction; rather, it serves as a trade risk warning. However, as LoyceV previously stated, the red tag has lost its credibility, and there are DT members whose red tagging no longer has effect as a result of their improper use of the system. There are at least one or more users with red trust, ranging from Chipmixer to the least signature campaign. Managers are no longer interested in it.
If the number of negatively tagged users keep increasing, it will reach to a stage that majority of the users in the forum would be negatively tagged and hence could fault the essence of the trust system.
Except for those who are here to milk money from the forum, that wouldn't change anything for those who here to seek knowledge. To put my thoughts in a single line, I believe that the increase of red tags has done more good than harm because the number of fraud accusations in the forum has decreased as well.