Upon checking my [flags](http://meta.stackoverflow.com/tags/cross-posting/info "see here: 'If you spot a user cross-posting, please make use of Moderator Flags to inform the Moderators.'") submitted at Programmers in a randomly picked [sample](http://en.wikipedia.org/wiki/Simple_random_sampling "Wikipedia article on random sampling") week (Oct 21-26), there were 18 cross-posts in 5 days (all either closed or removed now).

I would appreciate if system could help me by making it easier to discover these. From the flags I studied, it would be quite convenient if

1. prior to adding a question to First Posts review queue,
2. system would do an automated check
3. if user has [linked accounts](http://meta.stackoverflow.com/tags/linked-accounts/info)
4. if any of the [open](http://chat.stackexchange.com/transcript/message/11442949#11442949 "our moderator explained that there's no much use to flag if other post has been closed") questions submitted from linked accounts
5. in last 2-3 days
6. have identical markdown and / or rendered text.

Above is essentially how I find cross-posts manually.

I'd like to see results of mentioned check to make further review decision. Alternatively, if such posts are [automatically flagged](http://meta.stackexchange.com/a/125139/165773 "as suggested here") for mod attention, I would prefer them not to enter review queue at all, because reviewing stuff like that twice feels an overkill.

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It is worth noting that since my experience is limited solely to Programmers, I can't tell whether this would be useful / feasible for other sites.

* <sup>In particular, I have absolutely no idea if performance wise it would be practical at SO, with its _monstrous_ reviews stream ([~900K reviews in First Posts all time](http://stackoverflow.com/review/first-posts/stats) tell it's about 100x more than at Programmers).</sup>

With above in mind, I think that even if implemented, this probably would better be a feature enabled / disabled on a per-site basis, not SE network wide.