That shows how DT1-blacklisting would influence their DT-strength.
DT1 strength or DT2 strength? .. Now I'm confused lol ..

Both

I'm thinking about
this scenario, in which a "downvoted" DT1 member would end up on DT2 if he gets excluded from DT1.
To quote my Mobile:
This means it is possible that a DT1-exclusion leads to a member being on DT2 which wouldn't happen without blacklisting. This is probably caused by the fact that excluded DT1-members can vote against other DT1-members, but they can't vote against DT2-members.