I realize that there has been a lot of discussion about cross-posting an migrating between MO and MSE. It seems to me that it is common for someone to be unsure on whether a question is an MSE question or an MO question. An appropriate solution in this case is to post the question on MSE wait a good period of time. Then, if there is no activity on MSE, this inactivity can be part of a justification of a cross post on MO. I don't know if there is a consensus on what a good period of time might be, but it seems to be at least a few days. With this in mind I wanted to ask the following two questions:
1) Of questions that get answered on MSE, does anyone have data on how long it takes for 50%,60%,70%, etc. of questions to get answered? Or alternatively, how what percentage of questions get answered after 48 hours? 72 hours? 96 hours?
I confess that the above question is a bit leading and would require data from a site that is not MO. However, it's my opinion that a person should wait a week before cross posting. Admittedly this opinion is based on no evidence, and so having this data might help inform an opinion on that appropriate time to wait before cross-posting and better frame such a discussion. With this in mind I wanted to propose the following feature:
2) Should MO add a feature that flags questions having phrases similar to "cross-posted", "MSE", or "math.stackexchange" ask the person posting to provide a link to the question? I suppose the feature could automatically check the time the question was posted on MSE and provide data on how long it usually takes to get an answer on MSE. In the absence of such data, perhaps this feature could just set a waiting period of at least $n$ days.
I realize that this agreement on the value of $n$ might be a contentious. However, I just saw a cross post where the waiting period was 7 hours. I feel like this kind of behavior should be discouraged.