davido on cross-posting

Please make sure when you cross-post that you identify such, so that people here (or there) don't end up working on a problem that is solved. Identifying cross-posting will promote collaborative progress too. Getting a bunch of people doing research for you in parallel without knowing about each others' progress defeats the collaboration aspect of public forums.

choroba on crossposting

It is considered polite to inform about crossposting so people not attending both sites do not waste their time solving a problem already closed at the other end of the internet.

Anonymous Monk on crossposting

Cross-posting is allowed , but you should post a link/url.

Anonymous Monk on crossposting

wonderful job writing this post... right down to mentioning the cross-posting.

Without a link, a mention isn't very useful, its work ( go find the link)

Cross-posting is allowed, but to reduce duplication of work accross the internet (among collaborators), to enhance collaboration, you should post cross-links to the cross postings.