There is a desperate need IMO for a StackExchange site to be the definitive go-to for DAW questions (amongst other things of course). The existing help forums are dreadful - full of moaning, power trips, off-topics segues, and short on actual answers. The very reason why Joel Spolsky created StackOverflow for coders.
The problem with this current name is that I've just spent the last 10 minutes trying to decide which site, this one or "Music Theory and Practice" to post my Logic question in. In the end I did it both (!) and I know that's not what SE wants...
I think this site would miss out by using the words "Design" and "Engineering" in the title - too specific and technical. I would think "Production" would be a good word to include. I realise that in industry "producers" "mix Engineers" etc are different roles but in the broad wilderness of the Internets, "Music Production" covers a lot of popular ground. It also would include all the kit and techniques discussed above, from recording, to sound design, DAWs, synthesisers, modular environments etc.
So I propose
#Music and Audio Production#
...or...
#Music Producers
or
#Modern Music Makers
...again forgetting the technicality that not all "sound" artists are "music" artists, for the sake of catching the most fish.