You do realize that sarcastically saying is not the same as seriously saying something, right?
Second sentence was not referring to the first. People have voiced their disapproval of Lauda's actions. The problem is in the demographic of most of them being a bunch of kakapos.
When Lauda is giving out negative ratings for being a "liar" and a "troll" who are speaking against him, it sure looks like he is leaving negative ratings in retaliation to speaking out against him.