I've been a Stack Exchange contributor for a couple of years now, currently most active on travel.SE. One thing that keeps coming up is questions that would appeal to audiences on two different Stack Exchange sites but there are almost no features taking advantage of these questions.
On travel.SE we have crossover questions most often with outdoors.SE and possibly next most often with bicycles.SE - but it can happen with almost any SE site. Today alone we had a question that would cross over with money.SE and opendata.SE had a question that would cross over with us.
I am absolutely sure that this must happen all the time between arbitrary pairs of Stack Exchange sites but the only feature that takes advantage of it is the possibility of migrating off-topic questions which leaves the original question acting as a redirect across the two sites.
I think there is a missed opportunity to build the network between sites where users of one site don't realize they could make valuable contributions to a sister site they have had so far little to do with.
At the very least there could be a way to "advertise" a question on a second site that could be interested in it. Probably by listing it in the sidebar where there are also links to meta questions, linked questions, related questions, new blog posts, and
But there could also be some kind of features that make some sort of acceptable crossposting. There could be gamification/badges added around building cross-site questions or whatever else you can think up.
I think this is a great way for people to spread their expertise from their main site onto other sites, to make the network stronger and more cohesive, to bring more attention to questions that would have a divided audience between two sites. I can think only of positives and no negatives.
Does anyone else have some ideas to add or think this is a bad idea for any reason?
Example crossover questions:
Here are some links to some crossover questions I've been finding in the Stack Exchange network here. (This was previously posted as an answer, but more people wanted it to be part of the question.)
- ▶ : Stream Airfare data
- ▶ : Is it possible to “cook” pasta at room temperature with low enough pressure?
- ▶ : Is our mental lexicon structured like a tag-cloud system or hierarchical?
- ▶ : In Latent Semantic Analysis, how do you recombine the decomposed matrices after truncating the singular values?
- ▶ : If travelling through excessively cold regions, what steps should you take to keep your vehicle warm enough to drive?
- ▶ : What is usually an American breakfast outside of the US?
- ▶ : How Do Bicycle Spokes Work?
- ▶ : Where is a tripod allowed from high up in New York City?
- ▶ : Twitter image encoding challenge
- ▶ : If the letter J is only 400–500 years old, was there a J sound that preceded the design of the letter?
- ▶ : British Sunni Muslim visiting Iran with family
- ▶ : Why does Stack Exchange require you to click to be turned down?
- ▶ : Why does Obi-Wan say that he'll become more powerful if Vader kills him?