The list of tags for Super User includes...

• Android
• Date-Time

So I posted this question

To my surprise, the question was down-voted, my reputation has been hit, and the question was closed as off-topic.

I really am confused.

If Super User contains tags for both Android and Date-Time, then why is a question about setting the date-time on an Android closed as off topic ?

Is there an appropriate StackExchange Community for questions about Androids ?

Should I delete my question to protect my reputation ? Or has the damage been permanently done ?