They first came to infamy when they sent a very lengthy PM to Kevinsano on DA demanding they no longer draw any NSFW Twilight artwork. Shortly after the whole “married to his plushie” thing came about. After a while he switched from anti-porn to very heavily pro-porn. He also sort of turned into a total aggressive creep, hostile towards artists and loads of people in general, was “called out” for threatening people with IRL violence because of his plushie/wife, and very quickly repudiated throughout the whole fandom.
Last I remember from years ago he was posting pictures of his plushie smeared in his own shit. Yeah, it’s a trip.
The most notable ones were Rarity is my Waifu, and Chrysalis Lover. To my recollection they were both fairly OK folk, regardless of their fairly outspoken obsessions.