I think the exclusion has to do with the ratings that lauda sends and his ethics/morals, or lack thereof.
The others are fairly clearly farming trust

Yeah, Lauda is a complete asshole.
Today is the best day of my life! He's so butthurt

thank you so much OgNasty, you saved the forum
I wouldn't go as far as to say that this qualifies as the best day of anyone's life, however this will certainly be good for the community.
Ideally blazed will outright remove lauda from his trust list considering the number of others who have excluded lauda from the default trust network.
Lauda is very butthurt and will likely work behind the scenes to get his position back, likely using lies that will not get rack checked because they will be told privately.