[sida]

I used internal stackoverflow at Uber. Honestly, not super great. (even though it is great on paper)

the search function is bad and I end up using it a lot less. (and often can find better answers on slack)

I think to make SO useful, you need a push from the leadership layer to have all the questions be posted on SO and answered on SO. If you don't push for more questions to be answered on SO, then slack is often better source of Q&A.

And you probably need to maintain and trim the answers (since internal APIs / issues change a lot more rapidly and some answers can become stale quickly)

Basically, not a slam dunk straight away but I can imagine that it is a good idea