I think I mis-understand the nature of a group-- [View all]

[ellenrr]

the intro says that a group is a safe place for people of similar views.
so when I wish to communicate with people who have similar views to mine, I go to the Socialist progressive group, or Occupy Underground, bec. by the name I take these to be the most left-wing groups.

However, anyone can post in response to a post, no matter their point of view.

so - I don't understand - why have different groups?

I'm not asking a rhetorical question, I really want to know how best to use the format.

thanks.