Hi taj -
You can participate in any way that you like -- respond to old threads (agree, disagree, make other observations, bring a new perspective), respond to new threads, start new threads, join the chat, post in other parts of the board, be serious, be silly... Anything. Don't worry about saying things or feeling things that other people have said or felt before. When this thing grabs hold of you, you've got to deal with it. We know that.