From the code of conduct:
That is in the code of conduct specifically because people used to start flame wars over the existence of choice-based games in IFComp. (If anyone seriously wants to know why that’s so flamebaity, PM me and I can point you to some of the relevant threads and discuss some of the relevant issues, when I have time.) Don’t do this.
To be clear, “I like parser adventures” is a great thing to say. “I like parser adventures and I don’t like CYOA” is also perfectly fine. “CYOA has such and such flaws” is OK, in its own thread, where it can lead to non-flamey discussion. (In general, don’t derail threads.) “CYOA doesn’t belong in the IFComp” is specifically forbidden by the Code of Conduct, as is “CYOA is bad and you’re bad if you like it.”
[EDIT: In particular, MTW’s post above criticizing Twine is not a violation of the Code of Conduct, at least not in my view, and not what I’m concerned with here.]
And of course personal abuse is uncalled for on these forums.
I haven’t had time to review the whole thread but at least for now I’m going to go through and rant tag the most egregious violations.