Brandolini's law, also known as the bullshit asymmetry principle.
Brandolini only came out with this more than 3 years after Uriel Fanelli (and he acknowledged as much in his tweet).
Nobody I know or read uses "Brandolini's law" for "la teoria della montagna di merda" - in Italy, at least.
I found another copy of the original post, and
google can translate it.
Though it makes some specific Italian references (politicians, TV "personalities", free energy charlatans), I find this better than the rewrite I linked above.
Fanelli was sometimes over the top*, but he very often had quite good insights.
*E.g. his original blog usually sported some (completely out of context) extreme/disgusting porn pictures in the posts.
According to him, they were there as a deterrent for people so shallow to just stop at those or so stupid not to know how to block them.