You still have an excellent trading reputation, and your trust ratings will be weighted with this in mind when people see them. Being removed from default trust will not change this for most intelligent people. The problem is that default trust comes with added weight, and it is clear that any trust you give will be more damaging than normal. Since a TWC tag arguably ruins one's account, most people would say that people on default trust have an extra obligation to act responsibly with their trust ratings. It is clear that a majority of the community felt your trust rating on Armis was unwarranted, because of the damage default trust has. Your refusal to delete the rating in response to this is what caused your removal from default trust. You're entitled to leave whatever trust you would like to as an individual, but not with the added weight of other respected members of the community, which is what default trust does. The trust system is a right, but default trust is a privilege, which you lost when you acted how you did.

You also point out that many other members in default trust give out trust ratings for similar reasons (I believe you mentioned Vod as an example). What distinguishes them from you is that if a valid complaint were to be made against one of their trust ratings and there was a consensus that they were wrong to give such a rating, they would probably remove it, while you refused to do so.