Personally, I'm not a fan of LessWrong's thinking style, writing style, or intellectual products. As such, I think EA would be better off with less LW influence in the near-medium term.
However, I'm not familiar enough with EA's intellectual history to judge how useful LW was to it; I certainly can't predict EA's intellectual future. It seems possible that future exchange would be useful, if only for viewpoint diversity. On balance though I'd lean against heavy exchange.
I think EA is at its best when it takes the high epistemic standards of LW and applies them to altruistic goals. I see the divergence growing, and that worries me.
Can you give me an example of EA using bad epistemic standards and an example of EA using good epistemic standards?
I agree with this.
(I don't know whether the divergence is growing, shrinking, or staying the same.)