I think the negative trust comment we are seeing there those people who angry with lauda and vod.. if you receive negative trust from him i think you will be angry and giving him too a negative trust mostly this is happening if they didn't accepted that they caught  of stealing something here or any bad habits that against DT rules..  
But checking his negative trust i think he gave some proof before you receive negative trust unlike who are giving not valid negative trust. .
You account would be still stay as normal trust.