It takes a decent amount of time to implement a change on a product that already exists. It's more about listening for the next iteration and garnering information and opinion for the future products.
I would think the product manager who "Owns the light at the company," would be the one listening, but not commenting, just absorbing what people are saying. Places like this with knowledgeable participants are a wealth of information to a product manager. Do remember, they are also listening to their main market, and for some companies, it is not us.
I notice most companies have their PR or customer service people speak on here, they almost never make the engineering decisions. In most tech companies they are kept in a separate part of the building and are not allowed in on the product management. CS, or customer service is something different.
They don't know anything about new products until they have tooled up and maybe not even during production, so they don't give up valuable, millions of dollars of work in time R & D, testing to people on a forum for other companies to all of a sudden beat them to the trade show floor, and it happens.
So the guy you are communicating with here is more than likely just PR and if one of the product development people who have from time to time come on, they won't say much. However, it is rare the product side of the building would post.
Also, we are not even close to the segment some of these companies sell to, so that is why features don't get included when you sell more to the DHS alone in one year, than this entire forum and the hobby-enthusiast community combined worldwide, it is hard to get through sometimes.
I read the lawsuit against Surefire in one of the monthly business journals, and it was amazing. It involved the cops mixing up the light pad and the trigger, and the defense had some great arguments. If I still have it I will post what it was in, it was not a publication about flashlights or sport, maybe someone here saw it. It had some great product management issues in it.