Thanks everyone for the replies! They're all really interesting to read.
Still, one has to wonder why the hell most eroge/nukige companies don't diversify and take up skills and go into other markets like creating software or selling services to companies(while either waiting for the market to recover or waiting for new chances/markets). If they're so damn worried about the stigma of sex/whatever, they could do that under another company name(as long as they can't trace you).
I guess some of their problems boil down to Asian society's fear of failure, fear of risks and their belief "if you work really hard, you will be able to achieve sucess, no matter how impossible, in the face of overwhelming odds"(like hell it does). That's probably why they keep doing the same thing over and over again, even if the results willl doom or bankrupt them.
I actually wonder why the hell they don't make a F2P biishoujo game which is split into chapters or segments, and which is published online.
Also found a completely non-VN related link, related to software: https://www.disruptingjapan.com/can-this-startup-solve-japans-hidden-mental-health-problem-hikari-labs/