A person has what they feel is a deep shameful secret.
It can be a mental issue, it can be abuse they have undergone, or other situations.
Then they see other people posting here with the same and similar issues.
Of course this would encourage others to open up and discuss their own situations.
Some of the tzorus that have been posted are very hard to read, because part of being rachmonim is that we sympathize and empathize with others and our hearts go out to those who have posted.