I've gotten very used to this little free app called Audio Switcher that makes it way easier to switch back and forth between speakers and my headphones.
A study doesn't mean the authors were surprised necessarily. It's a way to test a theory and take down the results. It makes something that might have been hearsay into a more solid form.
Most of the game is solo-friendly. Some things are very difficult to solo, but if you get really good at the combat system it's still possible.
Coordinated end game party stuff isn't my bag so much, so I'm not sure about soloing it. There are a lot of different things you can do with different names that all amount to dungeon/raid style content. The things actually called "dungeons" are all from the original game and are really old at this point. The newer 5 man dungeons are called "Fractals", and there are also 10 man raids, and 10 man boss only encounters called "Strike Missions" (basically a single raid boss with no dungeon around it).
Gw2 is like the sleeper MMO that no one talks about but everyone still plays. I think the lack of subscription and never raising level cap does that to it. It's a very welcoming game to pick up and put down as time allows.
I'm probably not the best judge cause I've been playing semi regularly since launch, but I'd guess it's a really good time actually.
Long story short they've recently changed to a yearly expansion model with smaller scale expansions that tell more contained stories. The first one was pretty rocky, not gonna lie, but this new one is really good so far.
If you're someone who wants to go through the entire story and catch up you've got a very long road ahead of you (up to you whether that sounds good or not), but if you wanted to get back in quickly the new expansion is a totally reasonable starting point I'd say. You won't get a lot of the references, but I think you'd still get plenty of enjoyment being dumped in. I'm guessing it would feel like picking up a long running book series on book 20--there are lots of references and characters you don't know, but it's also doing its best to catch you up as a new reader and not expecting you've read it all.
Aside from story stuff, the game has had a bit of a Renaissance lately and there are a lot of new players from what I can tell.
I want to see a visualization of this now.