Assume I opened a post which I guess that there is an user which probably can answer and solve it.

  1. How could I notify this user about my post?
  2. Is it OK according to the Stack Exchange rules?

You don't summon user's to answer your post. Let them come to you. Notifying user's to answer questions would become quite annoying and abusive.

  • Exactly. Imagine how quickly people like Jon Skeet would simply leave the site! May 27 '13 at 3:43

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