If you're in DT1 (which you are), if you exclude a DT1 or a DT2 member your exclusion counts against them, i.e. if that person has more exclusions by DT1 members than inclusions by DT1 members - they're out of DT and their posted ratings won't count in the default trust scores. This works exactly as it used to, except now it applies to DT1 as well. Previously it didn't.

In addition to that - same as before - an exclusion removes the excluded person's ratings from the trust scores that you see. That works the same for anyone (DT member or not).