Four is okay, but five isn't?
You don't seriously think "those 5" can be compared to "those 4", do you? Why are you focussing on only the negative feedback, and not on the (incorrect) feedback I mentioned?
If that's not enough, let's see what DT1-members think about them. Out of "the 5", only one user is on DT2, with Strength (0). Meanwhile, all of "the 4" are on DT2, with Strengths going from (10) to (20).