For those willing to help to reduce the rejection rates, here is a suggestion
If the question is very brief, mention that the question doesn't look to be a good fit for SU and might closed or migrated. Ask the OP to search througly using https://stackexchange.com and the respective documentation or help (most of the apps have a help menu easy to find) and share their findings and why them didn’t meet their needs as is suggested in How to ask good question from this site.
I.E. If the question is about recovering a Facebook account, they might try [facebook] recover account. This returns 88 results, 8 / 15 from the first page are from Web Applications. The Facebook help is https://www.facebook.com/help/.
P.S. Customer service questions are off-topic on Stack Exchange Sites.
On which Stack Exchange site can I ask customer service questions about product X or company Y?