I found SO (over time) to give less and less useful information: the best information was always in the quasi-subjective questions. It's nice to know how to use something, but really, I want to understand why. The SO/SE theory is against those questions. I have 19K rep on SO, 5Kish on P.SE, and I barely contribute anymore.
So I am planning on creating a Slant account and experimenting when I get home.
I feel exactly the same way (not with the high rep you have, but a decent rep that I worked hard to cultivate in the past).
I think there are a good number of us who feel this way.
It is frustrating for a company to say it wants to "discover what its users are doing and enable it", and then to see that company squash so many individual pieces of excellent content those users have created.
So I am planning on creating a Slant account and experimenting when I get home.