Some forums can be beneficial, I have experienced several useful
professional forums.
Hmm...even for chit-chat type of forums, sometimes it can be
beneficial, like you can learn about newest happenings, nice
restaurants, etc.
But it's not true that forums have thousands of people updating
the topics in real time. Very few forums are like this. Very
few.
For instance take a look at below this page. How many people are
online now?
Yes, fewer than 50.