I noticed an interesting quirk in the URL format for sharing questions that I'm curious about. I could be wrong, but the following all appear to be valid links to the same question:
http://meta.stackexchange.com/questions/194959/do-the-benefits-of-having-so-in-multiple-languages-outweigh-the-risks-involved http://meta.stackexchange.com/questions/194959 http://meta.stackexchange.com/q/194959/227680 http://meta.stackexchange.com/q/194959
The first is the full URL of the question linked. In the second I trimmed off the "do-the-benefits-of-having-so-in-multiple-languages-outweigh-the-risks-involved" snippet. The third one is the URL suggested when the "Share" button is clicked on said question, and the fourth is the "Share" button URL with the "227680" snippet trimmed off.
Why is the "227680" snippet included? What does this signify? The fourth URL functions perfectly, so why do we opt to distribute the format seen in the third one instead?