Ever since I came back here your are the only one that has given me any feedback.
Well, I think that the main reason for that is this:
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Finished Sim Indie games:
SlaveMaker
SlaveMaker 2
Sim Brothel
Hentai Highschool (3 versions I think)
Games with working version that still develop new content and/or updates:
WM (Patches and new Content)
OtherWorld
SlaveMaker 3
MisBro
SimBro 1x
SImBrothel: Revival
Games that are being developed:
WM 2: Official
WM: Cathexis
Legends of Alkion (Also unofficial WM2 originally)
PytherWorld
I prolly missed some as well

And those are indies, one team is developing a similar game that they are planning to sell commercially that is by their promises supposed to be pretty good...
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So there is a bit of fatigue... I like to get involved and see how projects develop and how different people approach game building + I kinda like Pink Petal Forums
As for magic, from the sound of it, it is best left out as you suggest since there will be no user controlled battles and managing spells and mana will simply add an unwanted micromanagement issue. Magic is kind of useless in WM and only gets in the way, it would have been better I think but WM was never properly finished. The only real counter argument for cutting magic out of the game I can think of is that many characters from games and anime (that an indie sims like WM are based around) have magic in one form and another... Maybe a trait: Magical or Strong Magic that increases other stats could substitute absence of magic itself.
People thought the game was becoming too combat oriented and over complicated. You can read about the change somewhere in this thread.
This is actually awesome (as it creates variety). It is a completely different approach if compared to Alkion. I think that the opposite is true, I am a member of most of the indie development communities and what I see everywhere tells a different story. Many stats adds flavor to girls and differentiates them from each other. Combat orientation is also welcome in most games, you see people asking Daisy (OtherWorld Developer) when combat will be back and I don't think I've ever seem someone asking for combat removal. About the same is true for SM3.
In any case, it is impossible to make a game everyone will be happy with. My biggest issue with you design is an apparent lack of classes updates. I prefer to pick a couple of characters in every game and max them out, giving them best items, best care, best jobs and so on. Also lots of interactions. If you cannot advance a girl from lower classes to class S, my way of play is close to impossible to do but like I've said, making a game everyone will like is close to impossible as well.
As always I'll be glad to hear any feedback on the current attribute system.
You're oversimplifying attributes but that is not a bad thing. In my mind first rule should be that a game is not illogical and not counter-intuitive. Your design is both logical and makes sense so there is little I can add.