Thanks Judy. I was bookmarking them, and then when I looked at the topic I saw the word 'subscribe' with a check mark beside it, so I thought that mean I was subscribed. Turns out the check mark is meaningless, you have to click on the word!
That being the case, what does 'bookmark' do, if it doesn't send notifications? I don't see anything telling me my bookmarked threads have new posts. In other words, what is the difference between 'subscribe' and 'bookmark' ?
By the time I figure out this new board, I'm sure we'll have moved on to yet another one. Story of my life.