I don't think so. Read their other post below which makes it clear they think that even in principle, human psychological tendencies and traits cannot be validly identified.
Lord Kiran said:
I don't know why you're all trying to criticize the exact wording or obtuse nature of the questions asked. you might as well do that for the quiz that tries to tell you which game of thrones character you are for all the difference it makes.
It actually was. I am not under any illusion that labels are something you can shake off completely. As for the latter post, the point I'm making is that you're criticizing the wording of the questionnaire when the wording and obtuse nature of the questions are very much intentional and a part of how little personality quizzes like this function. Almost every question asked could be effectively answered with "Not necessarily" but if you answer every question with the nearest equivelent "Not sure" you end up with Centrist, which isn't a satisfying way to 'validate' (For lack of a better word) yourself as labels go.
As a statistical reality, most people are "centrist", so even the most valid assessment of people would put most as centrist. Some people will not think of qualifying conditions and thus not think "not necessarily. That lack of nuance and contextual thinking is a hallmark of ideological dogmatism and extremism. Such people will tend to select "strongly agree" or "strongly disagree", which would give them a more extreme score on that dimension, and that will be valid more often than not.
So contrary to your equating such a measure to a Game of Thrones character match, the scores on these dimensions are likely reliably correlated and predictive of all kinds of meaningful political values, attitudes, and voting behaviors. Thus, the flaws do not lie in some inherent invalidity of such measures as you imply, but with the particular wording of some items which could be improved.
For example, this particular measure uses "My country is great." while the prior political compass measure uses a more specific item of "I support my country, no matter what." These will be correlated by the people who endorse the latter are likely to highly endorse the former, and many of the people you don't endorse the latter, will hesitate to endorse the former because it sounds too much like a nationalistic chant. However, the former doesn't actually imply supporting your country's actions no matter what and can be interpreted as just thinking that one's country is relatively great compared to most in terms of democratic and constitutional principles and rights, even if it doesn't always live up to those ideals. The greater vagueness of the former items leads to more error in measurement, even if it does likely predict political behaviors to a modest degree.
OTOH, this current measure is better than the political compass in general (contrary to your claim they are all equally useless), because it divides the items into 4 dimensions rather than just 2. Likewise, the 2 dimensions are more valid than the most common surveys that divide people on the single dimension of liberal to conservative without separating economic and social issues. And yet, even just asking people to rate themselves on that one dimension has some validity in predicting many real world behaviors from how people vote to how they parent their kids.
In sum, your blind dismissal of such measures is unscientific and irrational, just as much as treating their results as definitive and without any flaws.