In regards to "Nebulous" feedback...

You know what Blizzard have done fairly recently?

They sent out questionnaires to players. Both players who've logged in recently and players whom have not logged in for a while.

Asking things like their opinions on various pieces of content, their priorities in terms of content (I.e. Rank in order of preference this list of activities) and in the case of the latter portion of players they literally asked "What would make you come back?"

Now, this ended up getting laughed at, partially because the way it happened was it was right after everyone saw their stocks drop massively so it came off as a "Y u no liek gaems?" type thing, in addition, some of them also had a heavy focus on "How much time/money do you spend watching the e-sports of this game?" right after they had just axed the pro scene in HotS...

However, this sort of thing isn't inherently negative.

It can simply be just a good way of gauging the success of new attempts at content as well as getting an idea of where to try adding something new.

For example, Eureka is a great place they can ask people about. Questions like:

* Did you enjoy it?

* What did/didn't you enjoy about it?

* If you could make some changes to it, what would they be?

* How did you feel about the Relic weapon being obtained there?

* How many Relic weapons did you complete?

* What did you feel about the difficulty?

* Did you like the FATEs? Why?

* How did you feel about Logograms?

* How did you feel about Baldesion Armoury?

This is just some of the questions they could ask about a single piece of content.

They could ask similar things about other content. Such as Dungeons, Raids, Beast Tribes, Crafting, Gathering, Gold Saucer, MSQ, FATEs, Hunts, Trials, Hildibrand, Housing, Character customisation, Male Viera/Female Hrothgar etc.

Just pop a bunch of questions into a questionnaire. Send them out to players via email. Collect the responses, get people to translate them and then let Yoshida read through peoples responses (Of course, trim things down so it's not a massive pile of things to read through)

Get direct feedback beyond mere "Numbers" and "Charts" - Easily collated into regional preferences and relevant to specific topics.

While leaving the "Nebulous" ideas and thoughts to the Forums/Reddit where people can put together threads about new content they might like to see.