its because people are cringing at your claims, because of how far you are ability wise to back them up. It's the same sort of reaction Woobowiz got when he first made his thread. People were annoyed with his idea that he could reach cookiezi's level before even comprehending what it takes to get there "ill do it in a year!" and talking way bigger than he was.
I think everyone expected him to realize how absurd his goals were, or perhaps just lose interest in osu/be ashamed of his posts or something and the thread would die within a week of being made, but he's really proven himself serious about his goal so far which was really surprising and he has started to amass a following of sorts because of it.
Hell, I can't even claim 5 star maps are easy without idiots people calling me out, you calling maps like airman easy prompts an even greater reaction.