It tricks other people into thinking the thread is new, and then they start "replying" to posts that are actually months old. If you view a thread as a conversation, it's like one person continuing to talk while everyone else has walked out of the room without saying anything. The one person left will look and feel foolish.
This is especially a problem in threads where people are asking for advice; the problem people were seeking help with may be long solved, and people may not really want to revisit the issue.
It's also especially a problem with threads that have been closed for so long that people's views or opinions may have changed over the time the thread has lain dead. |