Well, to me it has become overused and annoying. Once you repeat a joke enough it becomes a pain in the butt to hear even if it was absolutely hilarious at first, which in this case, it really wasn't.
It's a forced joke that has been going on for nearly a year now and it's driving everyone insane. It's showing up everywhere; you can't read the comments on a Youtube video without being hit with at least one 'sus', 'sussy baka', or 'amogus'. You can't play a single solitary game on Roblox without being hit with at least one 'sus', 'sussy baka', or 'amogus'. Heck, you can't EVEN GO ON THE INTERNET without being hit with at least one 'sus', 'sussy baka', or 'amogus'.
Remember the choccy milk memes? How they were so low quality and spammed all over ImgFlip? How it felt like some sort of brain-eating parasite had infected the community? Well amogus is like that but on a worldwide scale.
That's why I insulted amogus, and that's why it's not funny.