There’s a lot of context, but the quick brief I can give you is he’s a Roblox YouTuber who hunts predators on the platform and he also hates furries and trans people and is a frequent user and defender of KF. This has gotten him a lot of backlash and he dosent seem to be able to handle it like at all. He can be found on Kiwifarms, Twitter, or even some subsections of his videos complaining about how people don’t like him and claiming he’s being “harassed” for people doing the same shit to him that he’s cool with KF doing.
He has a KF thread for his “haters” that’s absolute cancer and is mostly full of farmers a-logging over people personally disliking his shit personality. They have a tendency to claim Ruben won a spat because the person criticizing him happened to be trans/a furry/a NSFW artist/mentally ill/autistic/etc. If the person criticizing him isn’t any of these things then they claim “They’re probably a pedophile”. Yes, Ruben frequents this thread. He frequents the thread made to kiss his ass

I’ve also heard he tends to make derisive sexual comments towards minors on his twitter but this is something purely alleged that I’m too lazy to check for myself.
Anyone can correct or add if I missed anything.