I think Spitfire is one of, if not, the MOST involved developer in the composing community. They've set the bar in my opinion. Just look at how many tutorial videos they have been posting over the years, not to mention all the free instruments they give out with LABS. To insinuate they aren't listening to feedback just because they don't respond in a third-party forum (especially given much of that feedback was not given particularly politely) seems to be the type of mindset that allowed Staypuft to flourish in the first place. This is not a support forum and this is not the official feedback channel either - I'm sure Paul / Christian have a ton of things to do as well. Of course they listen - see how fast they addressed the initial player performance issues? They just took the feedback for Hans Zimmer Strings and released a 60GB free update. There was an issue with Chamber Strings performance legato that was brought up in the forum and they released an update to fix it very quickly. Maybe going forward they'll hire a community liaison to respond, though that can be tricky and can go horribly wrong (see EastWest).
Also, just for factual completeness, OT is not answering a number of repeated questions in the JXL thread.
Also, just for factual completeness, OT is not answering a number of repeated questions in the JXL thread.