It is a nice option to subscribe to a thread so that when there is a new post you are aware of it.
IMHO if we keep our posts in one thread each of us will be notified when a GTG idea is suggested. I use this forum far less than before, without the subscription it is unlikely that I would know about any plans. There are many local owners who have attended WDC in the past but drop out of sight the rest of the time. I had thought about sending PMs and emails to them asking if they had an interest in subscribing to the thread. Talk amongst yourselves, what do you think?