It really does feel like the author just wanted to play some jokes on the "generic harem party" trope, and placed an MC in an impossible situation in which he has to stick with them, just for laughs.
I think it could've been fine if the MC was merely observing them, and was not implicated by their "humorous incompetence", or if they stuck around for 2 chapters, max. Not 4, or 5, and considering the pacing of the story -- I bet they'd still stick around by chapter 8.
At the point of the current chapter, I am already tired of them. Yes, I get it. Harem party, the girls are a bunch of annoying harpies, and the "hero" is a clueless idiot. The premise of the MC himself makes the story worthwhile, but this specific arc has already played its cards for too long.
Also, currently, 3 days of delay? I honestly don't even think it's worth the bother to visit the website.