I'm not familiar specifically with LINQ but in most languages that implement map/reduce/filter operations, the "*" requirement could be clearly expressed using

I'm not familiar specifically with LINQ but in most languages that implement map/reduce/filter operations, the "*" requirement could be clearly expressed using a map. What happens when you need an alphabetical list of admins who have logged in during the last week? The for-loop approach becomes progressively more and more cluttered with implementation cruft, while a declarative approach just adds a filter and a sort. And, to be frank, even the example you present is clearer to me in LINQ than in Go, and I am much more familiar with Go.