The source being quoted (and promoted) here was written in a less barbaric and brutal era of internet communications, 2014, when humanity was not exclusively devoted to wearing a mask, wielding a knife, and stabbing itself in the back:
‘Adulter, impudicus, sequester‘ convicium est, non accusatio.
(‘Adulterer, pervert, dealer in bribes’, this is the language of slander, not of prosecution.)
The strange tale told (and in large part concealed) in Cicero's strange Pro Caelio is the only evidence we have that what Catullus had to say about his own sex life was not fictional —and was not intended to be seen as fictional by his contemporaries.
Our Pro Caelio purports to be the speech delivered by Cicero to conclude the defence; a speech which is famous among classicists for its over-the-top denunciation of the sexual mores of the prosecution’s star witness, Clodia (a woman alleged to have been the inspiration for Catullus’ lover, [referred to in his poems by the pseudonym] Lesbia).
Here is the short article I am drawing your attention to:
https://whatwouldcicerodo.wordpress.com/2014/05/21/power-corruption-and-lies-in-defence-of-caelius/
The author is still alive and (as is typical of this era of the internet) continues posting to Instagram, but no longer to his (long abandoned) blog, linked to above.
https://www.instagram.com/sillettandrew/
York University —quite possibly the most miserable place on this earth that I have ever set foot— somehow ended up making a translation of the Pro Caelio available to the public without crediting the translator.
[Cicero:] But now I will handle her [Clodia, a.k.a. Catullus's Lesbia] with moderation, and proceed no further than my honor and the case itself demand. I have never thought it right to take up arms against a lady, especially against one whose arms are so open to all.
The denunciation that ensues, delayed by many digressions to contrast the morals of "the fallen age" we are (now) living in to the glorious past of a still-more-ancient Greece and Rome, tells us more about Cicero's character than it does about Clodia or or Caelio or Catullus.
