BC.GAME team will need a long time to rebuild their reputation and so far they are doing good to get it. They and other business have to know that with Trust and feedback system in bitcointalk, some users can leave a negative trust feedback and if they abandon the forum, their trust feedback will stay. Forum admins will not erase those trust feedback and it can be visually display with forum default trust setting, if those users won't be removed by DT vote.
The forum has a very good system here with the DT system to avoid something like this. Of course, anyone can tag someone and give them a negative trust. However, these trusts usually only have "weight" if they come from a DT member.
A tag won't confuse someone who has nothing to do with the forum at all and comes across posts here via Google, for example, as these people usually don't know what it means or don't click on the trusts in the first place.