I found that an interesting and important question that someone asked on one SE site is likely to benefit from answers coming from users who frequent other SE sites. What are the best ways to attract attention to this question from the users of other Stack Exchange sites?
Suggesting that the author cross-post the question is one possibility (but not the best one, in my opinion). Is there a way to "ping" a few selected communities? I am looking for something less intrusive than cross-posting.
Note that I am not the OP of the question. I merely provided one possible answer to the question. Even though it was upvoted and accepted, I think the OP would benefit from other answers.
My question above is general. But for the curious, the post I refer to is on Parenting.SE: Supporting kid in innovation
I think that it may benefit from answers by users in the "makers" communities (there are a few of those on SE).
The pros and cons of cross-posting:
Is cross-posting a question on multiple Stack Exchange sites permitted if the question is on-topic for each site?
Cross-posting on StackExchange sites
Is cross-posted forbidden/discouraged on Stack Exchange sites? If so, why?
Is cross-posting wrong (to an external site)?