Well, at least that's my perception whenever i'm talking about IT stuff with people who have worked for quite some time in the field.
But considering that we have to deal with Flat-Eartheners, Toxic Feminists, Anti-Vax-People and all the other missguided SJW's nowadays,
i think it's a nice graph to keep in mind.
There are by far to many self proclaimed experts, that don't actually know anything about the topic on which they have a strong opinion about.
Most of the time you might only make yourself look stupid, but in rare cases it might end with serious consequences.
So if you catch me doing it, please call me out and/or enlighten me.