There were from what I remember, around 7 people that left a comment on the thread saying this game crossed some sort of line, before I removed the taboo content from the game.
As for the 'filler', I disagree, mainly due to story flow, and for example, the MC having to let off steam serves to develop his own character. The introduction (the first four days) is more about the development of the MC himself than that of the girl or the relationship between boy and girl. So having scenes where he is alone, and has time to think are important in my opinion for his own character development. He goes from feeling nothing for the girl, to being attracted to her; but feeling awful about it, to accepting his feelings for the girl, and finally, he will begin to start acting on them.
As for the cooking scene, I agree it's mainly filler. It's not THAT big though, it's 400 words. It's the scene I am least happy with, and I plan to rewrite it. The reason I do not just say "I go down the stairs, into the kitchen and cook dinner for my housemate; Spaghetti with tomato sauce." and skip from interesting scene to interesting scene, is because a story like that gets disjointed in my opinion, where there is little feeling of passage of time and you are skipping around all over the place. The story will begin to look like a list of actions, which many porn games suffer from in my opinion.
I get that it's not everyone's cup of tea, but it's my writing style, and I'm not planning on changing this in a major way. Although, the introduction serves to let me skip ahead in later days. Things will be getting skipped and/or summarized in the girl's diary, and much of the swimming stuff will be delegated to various people (the coaches, your landlady, etc.) and the focus will shift from that after the introduction is over.
I do appreciate your feedback, and hope you still enjoyed playing the game, despite not liking some elements.