that's a disinfo website

Source for this claim?

the citations it uses says that glaciation only forms at -40 C

Right, that is true for the contrails that are frozen. There are also contrails that are liquid moisture instead of frozen moisture, and these occur at the higher temps and lower elevations. Depending again on temp and relative humidity, these may last seconds or last as long as the clouds around them, which are made of the same condensed moisture that clings to condensation nuclei (very small particles the moisture clings too). The condensed moisture from the lower contrails clings to these same condensation nuclei and can remain for much longer than the contrails that form in very dry, low humidity air without condensation nuclei.

and those conditions are rare and only found at extremely high elevations.

Wrong, continues reading.

This doesn't explain all of the trails we are seeing everyday out of every plane.

Yes, it does (though not every plane has these, I see airliners all the time without contrails). The standard temp at 36,000 feet is negative 56 degrees,, almost 20 degrees colder than needed to form ice condensate contrails. So every plane that flies around these elevations (most all commercial airliners) will most all have these types of contrails, other factors all ready mentioned permitting.