If there's no distinction to be made between elite prescription and mass usage, then what is the point of appealing to "common usage via Google" at all? By your argument, I'm just as much an "influential part of the popular-usage process" as the Google results that were being used as an argument against my position. Either there is a distinction between common and elite usage, or there isn't. If there is, we can argue about which is more important in what circumstances. If not, then we're back to arguing about function and ambiguity.
No, there is a distinction here, but it's not between common and elite usage. It's about whether the authority is normatively correct even when the people disagree. If an authority is against a usage and most people continue using it, most linguists (holding the "popular usage" position) will be for that usage. If an authority is against a usage and most people are also against it (whether influenced by the authority or not), most linguists will be against it.
I'm just as much an "influential part of the popular-usage process"
Yes! If you're influential, that is. Google certainly is.
As I've recently been understanding signalling/status behaviors common among humans and how they can cloud reality, I've had a tendency to automatically think of these behaviors as necessarily bad. But it seems to me that signalling behaviors are pretty much a lot of what we do during our waking life. If you or I have abstract goals: become better at physics, learn to play the guitar, become fit and so forth, these goals may fundamentally be derived from evolutionary drives and therefore their implementation in real life would probably make heavy use of signalling/status urges as primary motivators. But that does not necessarily reduce the usefulness of these behaviors in achieving these abstract goals1,2.
I suppose what we need to be cautious about are inefficiencies. Signalling/status behaviors may not be the optimal way to achieve these goals. We would have to weigh the costs of actively ignoring your previous motivators and cultivating new motivators against the benefit we would gain by having motivations more aligned to our abstract goals.
Any common examples of behaviors that assist and/or thwart goal-achievement? I've got one: health. Abstract goal: We want to be healthy and fit. Status/Signalling urge: desire to look good. The urge sometimes assists, as people try to exercise to look good, which makes you healthier. Sometimes it thwarts, like in the extreme example of anorexia. Has anybody made personal trade-offs?
Note:
1) I realize that this theme is underlying in many LW posts.
2) I'm not trying to talk about whether abstract goals are more important than signalling/status goals.