So I think the no "well-actually" policy is because people saying "well actually" prevents people suggesting improvements because they don't want to say somethi

So I think the no "well-actually" policy is because people saying "well actually" prevents people suggesting improvements because they don't want to say something that might sound stupid. The hacker school manual goes into greater detail. Having teambuilding events around drinking increases homogeneity, because that kind of event is most attractive to your average 20-something white male, and least attractive to a lot of other groups (e.g. people who don't drink from preference or religion, people who don't want to hang around with drunk people for various reasons etc). So the gains from diversifying team building should far outweigh the loss of this one narrow kind of event.