Imagine a DM that wants to introduce a certain house-rule into his game but is unsure about the gameplay/mechanical consequences of his proposal. So he decides to come to RPG.SE and ask a question along the lines of:
What are the mechanical and gameplay consequences of my house-rule?
I want to change [certain part of the game] with a house-rule. I have thought about it for a long time and came up with the following:
Was asking such a question okay?
I'm curious about it because the other way round (asking a general question that gets answered with house-rules) is obviously acceptable. Are such feedback/rfc-style questions allowed even if they delve more into discussions than pure Q&A?