I have attempted to simplify this post further, with question first and background second:
My question to the community gurus, in the interest of providing best help and lively conversation, what is the best way to encourage more specificity of the genre or intended usage of the language in the questions and answers?
Background: I'm new to the forum, but I have noticed a tendency, in some questions, to provide reasonable context and research without any information about what form the language is going to take. Yet, those questions receive definite-sounding answers from the community with no idea as to whether the OP is planning to address a professor or their grandma. This has an effect of watering down the conversation (in some instances) or encouraging idle grammar policing.
In order to compensate for this, I can ask the OP for generic information directly (which seems to be the consensus) or add a series of ifs and buts to the end of my answers like this: "If you're writing a speech, or if you're talking to grandma, but not on a college term paper, etc."
(If this topic is just too meta then let me know. I'm new here and just wanted this question on the table to see how the group might address this.)