I asked the following question on WorldBuilding SE.
How can invading aliens access the Internet to find out all about us?
I now find that I am unqualified to judge the best answer. These range from "It's impossible" to "It's easy".
Is there any on-topic question I can ask on IS that will help me judge the answers?
I could ask an expert here to judge for me - but that seems unlikely to be on-topic.
I could ask a similar but more specific question here and compare the results.
Something else that I haven't thought of.