Ad hominem (Latin for "to the person"), short for argumentum ad hominem, typically refers to a fallacious argumentative strategy whereby genuine discussion of the topic at hand is avoided by instead attacking the character, motive, or other attribute of the person making the argument,

For example below: Guido merely reports the news, yetis being attacked, whereas magic grandad is the news. Perhaps a difference too subtle for the less discerning. However the major sticking point for the left is highlighted in bold below. Guido is widely read by those in power. What the left do is of zero consequence. They are not in power, nor likely to be for the foreseable future
. Even his inability to stick to his ‘Business Information Studies’ degree course at Hull College of Higher Education (now part of the University of Lincoln) which he abandoned part-way through.
Corbyn began a course in Trade Union Studies at North London Polytechnic but left after a year without a degree after a series of arguments with his tutors over the curriculum.

From the press gazette:
(Press Gazette upholds the highest standards of ethical and professional journalism.)
January 23, 2020Lobby allows live reporting from Government briefing after Guido Fawkes tweets
November 11, 2019Guido Fawkes looking for new reporter after Sun
poaches Steven Edginton
October 28, 2019
Guido Fawkes hires journalist who helped expose UK diplomatic cables about Trump

August 27, 2019
Guido Fawkes news editor made special adviser to Jacob Rees-Mogg
May 28, 2019
Guido Fawkes founder behind campaign backing Boris Johnson's Tory leadership bid
July 9, 2018
Andrew Neil is MPs' favourite political journalist as Guido Fawkes, Evening Standard and Times among most read by those in power, poll finds
July 3, 2018
Guido Fawkes news editor Alex Wickham to join Buzzfeed UK politics team