@AegisVD because this is one of "those manga" on this site. One of the ones that a lot of people follow, so they get a lot of comments, so they also get a lot of people trolling and looking to bait. People that come here to make the same complaints (MC is spineless, getting into Waifuwars, and asking where Mami is despite her probably being the character with the most polarised opinions on of all) and hating on the manga, because it riles people up and gets responses.
There are other manga on here that get the same kind of horrid comments sections - "I shaved, then I brought a high school girl home" is another one that comes to mind, that honestly has an even more horrid comments section every chapter than this does... I stick my nose in to see if anything has changed in these comments sections from time to time, and I regret it every time, because it they never do change...