[rand_r]

> they removed the discussion search filter.

Could you provide more detail on this search filter? I haven't heard about its removal before and it sounds interesting.

[squarefoot]

A search for "google discussion search" brings lots of results.

https://productforums.google.com/forum/#!msg/websearch/Psb6O...

https://www.reddit.com/r/google/comments/2b54ux/google_compl...

http://www.realitymod.com/forum/f11-off-topic-discussion/130...

...etc.

[captainlego]

For now...