Going through these it seems that some good SETI and extraterrestrial questions have always been on-topic here.
I also think that SETI is a valid subfield of Astronomy and there have always been real astronomers participating in this field.
Should we re-open the closed question and keep the one with two close votes open as well?
What are some effective and actionable guidelines for judging when a good SETI question is on-topic and should be kept open, and which should not be considered on-topic?
What about good METI questions? (Messaging Extraterrestrial Intelligence)
- How to communicate Fine Structure Constant to aliens? (2 close votes with "probably more suited to" close reason)
- What are the prime challenges in search for extraterrestrial intelligence? (well received, great answer, closed, voting to reopen)